TY - STD TI - Help Age International. Global AgeWatch index 2015: insight report. 2015. http://www.helpage.org/global-agewatch/. Accessed 31 Oct 2016. UR - http://www.helpage.org/global-agewatch ID - ref1 ER - TY - STD TI - Oeppen J, Vaupel JW. Broken limits to life expectancy. Science. 2002; doi:10.1126/science.1069675. ID - ref2 ER - TY - BOOK PY - 2015 DA - 2015// TI - World population prospects the 2015 revision: key findings & advance tables ID - ref3 ER - TY - JOUR AU - Ramage-Morin, P. L. AU - Shields, M. AU - Martel, L. PY - 2010 DA - 2010// TI - Health-promoting factors and good health among Canadians in mid-to late life (catalogue no. 82-003-X) JO - Health Rep VL - 21 ID - Ramage-Morin2010 ER - TY - CHAP AU - Weir, P. AU - Baker, J. AU - Horton, S. ED - Baker, J. ED - Horton, S. ED - Weir, P. PY - 2010 DA - 2010// TI - The emergence of masters sport: participatory trends and historical developments BT - The masters athlete: understanding the role of sport and exercise in optimizing aging PB - Routledge CY - New York ID - Weir2010 ER - TY - STD TI - Taylor D. Physical activity is medicine for older adults. Postgrad Med J. 2014; doi:10.1136/postgradmedj-2012-131366. ID - ref6 ER - TY - STD TI - Taylor AH, Cable NT, Faulkner G, Hillsdon M, Narici M, Van Der Bij AK. Physical activity and older adults: a review of health benefits and the effectiveness of interventions. J Sports Sci. 2004; doi:10.1080/02640410410001712421. ID - ref7 ER - TY - STD TI - Chodzko-Zajko WJ, Proctor DN, Fiatarone Singh MA, Minson CT, Nigg CR, Salem GJ, Skinner JS. American College of Sports Medicine position stand: exercise and physical activity for older adults. Med Sci Sports Exerc. 2009; doi:10.1249/MSS.0b013e3181a0c95c. ID - ref8 ER - TY - STD TI - Hamer M, Lavoie KL, Bacon SL. Taking up physical activity in later life and healthy ageing: the English longitudinal study of ageing. Br J Sports Med. 2014; doi:10.1136/bjsports-2013-092993. ID - ref9 ER - TY - STD TI - Azagba S, Sharaf MF. Physical inactivity among older Canadian adults. J Phys Act Health. 2014; doi:10.1123/jpah.2011-0305. ID - ref10 ER - TY - BOOK PY - 2011 DA - 2011// TI - General social survey 2010 - overview of the time use of Canadians (catalogue no. 89–647-X) ID - ref11 ER - TY - STD TI - Dionigi R. Leisure pursuit that ‘goes against the grain’: older people and competitive sport. Ann Leis Res. 2005; doi:10.1080/11745398.2005.10600957. ID - ref12 ER - TY - JOUR AU - Smith, C. L. AU - Storandt, M. PY - 1997 DA - 1997// TI - Physical activity participation in older adults: a comparison of competitors, noncompetitors, and nonexercisers JO - J Aging Phys Act VL - 5 UR - https://doi.org/10.1123/japa.5.2.98 DO - 10.1123/japa.5.2.98 ID - Smith1997 ER - TY - CHAP AU - Weir, P. ED - Baker, J. ED - Horton, S. ED - Weir, P. PY - 2010 DA - 2010// TI - Physical activity: what role does it play in achieving successful aging? BT - The masters athlete: understanding the role of sport and exercise in optimizing aging PB - Routledge CY - New York ID - Weir2010 ER - TY - CHAP AU - Baker, J. AU - Horton, S. AU - Weir, P. ED - Baker, J. ED - Horton, S. ED - Weir, P. PY - 2010 DA - 2010// TI - Preface BT - The masters athlete: understanding the role of sport and exercise in optimizing aging PB - Routledge CY - New York ID - Baker2010 ER - TY - STD TI - Baker J, Fraser-Thomas J, Dionigi RA, Horton S. Sport participation and positive development in older persons. Eur Rev Aging Phys Act. 2010; doi:10.1007/s11556-009-0054-9. ID - ref16 ER - TY - CHAP AU - Horton, S. ED - Baker, J. ED - Horton, S. ED - Weir, P. PY - 2010 DA - 2010// TI - Masters athletes as role models? Combating stereotypes of aging BT - The masters athlete: understanding the role of sport and exercise in optimizing aging PB - Routledge CY - New York ID - Horton2010 ER - TY - CHAP AU - Medic, N. ED - Baker, J. ED - Horton, S. ED - Weir, P. PY - 2010 DA - 2010// TI - Understanding masters athletes’ motivation for sport BT - The masters athlete: understanding the role of sport and exercise in optimizing aging PB - Routledge CY - New York ID - Medic2010 ER - TY - CHAP AU - Holt, N. L. AU - Deal, C. J. AU - Smyth, C. ED - Holt, N. L. PY - 2016 DA - 2016// TI - Future directions for positive youth development through sport BT - Positive youth development through sport PB - Routledge CY - New York ID - Holt2016 ER - TY - STD TI - Gayman AM, Fraser-Thomas J, Dionigi RA, Horton S, Baker J. Is sport good for older adults? A systematic review of psychosocial outcomes of older adults’ sport participation. Int Rev Sport Exerc Psychol. 2017; doi:10.1080/1750984X.2016.1199046. ID - ref20 ER - TY - BOOK AU - Kleiber, D. A. PY - 1999 DA - 1999// TI - Leisure experience and human development: a dialectical approach PB - Basic Books CY - New York ID - Kleiber1999 ER - TY - STD TI - Coakley J. Youth sports: what counts as “positive development”? J Sport Soc Issues. 2011; doi:10.1177/0193723511417311. ID - ref22 ER - TY - STD TI - Winterbotham S, du Preez J. Psychosocial wellbeing in active older adults: a systematic review of qualitative literature. Int Rev Sport Exerc Psychol. 2016; doi:10.1080/1750984X.2015.1122075. ID - ref23 ER - TY - STD TI - Agans JP, Geldhof GJ. Trajectories of participation in athletics and positive youth development: the influence of sport type. Appl Dev Sci. 2012; doi:10.1080/10888691.2012.697792. ID - ref24 ER - TY - STD TI - Coalter F. Sport-for-change: some thoughts from a sceptic. Soc Inclusion. 2015; doi:10.17645/si.v3i3.222. ID - ref25 ER - TY - CHAP AU - Holt, N. AU - Sehn, Z. L. ED - Holt, N. L. PY - 2008 DA - 2008// TI - Processes associated with positive youth development and participation in competitive youth sport BT - Positive youth development through sport PB - Routledge CY - New York ID - Holt2008 ER - TY - JOUR AU - Agans, J. P. AU - Säfvenbom, R. AU - Davis, J. L. AU - Bowers, E. P. AU - Lerner, R. M. PY - 2013 DA - 2013// TI - Positive movement experiences: approaching the study of athletic participation, exercise, and leisure activity through relational developmental systems theory and the concept of embodiment. In: Lerner RM, Benson JB, editors JO - Adv Child Dev Behav VL - 45 UR - https://doi.org/10.1016/B978-0-12-397946-9.00010-5 DO - 10.1016/B978-0-12-397946-9.00010-5 ID - Agans2013 ER - TY - STD TI - Erickson K. Relational developmental systems and PYD in sport: a metatheoretical perspective [abstract]. J Exer Move Sport 2015;47. ID - ref28 ER - TY - CHAP AU - Geldhof, G. J. AU - Bowers, E. P. AU - Johnson, S. K. AU - Hershberg, R. M. AU - Hilliard, L. J. AU - Lerner, R. M. ED - Molenaar, P. C. M. ED - Lerner, R. M. ED - Newell, K. M. PY - 2014 DA - 2014// TI - Relational developmental systems theories of positive youth development: methodological issues and implications BT - Handbook of developmental systems theory and methodology PB - Guilford CY - New York ID - Geldhof2014 ER - TY - CHAP AU - Lerner, R. M. AU - Leonard, K. AU - Fay, K. AU - Issac, S. S. ED - Fingerman, K. L. ED - Berg, C. A. ED - Smith, J. ED - Antonucci, T. C. PY - 2011 DA - 2011// TI - Continuity and discontinuity in development across the lifespan: a developmental systems perspective BT - Handbook of lifespan development PB - Springer CY - New York ID - Lerner2011 ER - TY - BOOK AU - Lerner, R. M. PY - 1984 DA - 1984// TI - On the nature of human plasticity PB - Cambridge University Press CY - New York UR - https://doi.org/10.1017/CBO9780511666988 DO - 10.1017/CBO9780511666988 ID - Lerner1984 ER - TY - BOOK AU - Lerner, R. M. PY - 2002 DA - 2002// TI - Concepts and theories of human development PB - Lawrence Erlbaum Associates CY - Mahwah ID - Lerner2002 ER - TY - STD TI - Lerner RM, Lerner JV, Benson JB. Positive youth development: research and applications for promoting thriving in adolescence. In: Lerner RM, Lerner JV, Benson JB, editors. Advances in child development and behavior: positive youth development. Vol. 41. New York: Elsevier; 2011. p. 2–18. ID - ref33 ER - TY - STD TI - Mueller MK, Lewin-Bizan S, Urban JB. Youth activity involvement and positive youth development. In: Lerner RM, Lerner JV, Benson JB, editors. Advances in child development and behaviour: positive youth development. Vol. 41. New York: Elsevier; 2011. p. 231–49. ID - ref34 ER - TY - CHAP AU - Agans, J. P. AU - Vest Ettekal, A. AU - Erickson, K. AU - Lerner, M. ED - Holt, N. L. PY - 2016 DA - 2016// TI - Positive youth development through sport: a relational developmental systems approach BT - Positive youth development through sport PB - Routledge CY - New York ID - Agans2016 ER - TY - STD TI - Overton WF. Relationism and relational developmental systems: a paradigm for developmental science in the post-cartesian era. In: Lerner RM, Benson JB, editors. Advances in child development and behavior. 2013; 44: 21–64. ID - ref36 ER - TY - STD TI - Baltes PB, Lindenberger U, Staudinger UM. Lifespan theory in developmental psychology. In: Lerner RM, editor & Damon W, Lerner RM, editors-in-chief. Handbook of child psychology. Vol. 1: theoretical models of human development. 6th ed. Hoboken: Wiley; 2006. p. 569–664. ID - ref37 ER - TY - STD TI - Brandtstädter J. Action perspectives on human development. In: Lerner RM, editor & Damon W, Lerner RM, editors-in-chief. Handbook of child psychology. Vol. 1: theoretical models of human development. 6th ed. Hoboken: Wiley; 1998. p. S16–68. ID - ref38 ER - TY - STD TI - Brandtstädter J. Action perspectives on human development. In: Damon W, Lerner RM, editors. Handbook of child psychology. Vol. 1: theoretical models of human development. 5th ed. New York: Wiley; 2006. p. 807–63. ID - ref39 ER - TY - STD TI - Gestsdóttir S, Lerner RM. Intentional self-regulation and positive youth development in early adolescence: findings from the 4-H study of positive youth development. Dev Psychol. 2007; doi:10.1037/0012-1649.43.2.508. ID - ref40 ER - TY - STD TI - Gestsdóttir S, Lerner RM. Positive development in adolescence: the development and role of intentional self-regulation. Hum Dev. 2008; doi:10.1159/000135757. ID - ref41 ER - TY - STD TI - Overton WF. Processes, relations, and relational-developmental systems. In Overton WF, Molenaar, PCM, editors & Lerner RM, editor-in-chief. Vol. 1. Theory and Method. Handbook of child psychology and developmental science. 7th ed. Hoboken: Wiley; 2015. p. 9–62. ID - ref42 ER - TY - CHAP AU - Overton, W. F. ED - Overton, W. F. ED - Müeller, U. ED - Newman, J. L. PY - 2008 DA - 2008// TI - Embodiment from a relational perspective BT - Developmental perspectives on embodiment and consciousness PB - Erlbaum CY - Hillsdale ID - Overton2008 ER - TY - STD TI - McMahon J, Barker-Ruchti N. Assimilating to a boy’s body shape for the sake of performance: three female athletes’ body experiences in a sporting culture. Sport Educ Soc. 2017; doi:10.1080/13573322.2015.1013463. ID - ref44 ER - TY - STD TI - Blom L, Bronk K, Coakley J, Lauer L, Sawyer T. Maximizing the benefits of youth sport. J Phys Educ Recreat Dance. 2013; doi:10.1080/07303084.2013.820112. ID - ref45 ER - TY - STD TI - Camiré M, Trudel P, Forneris T. High school athletes’ perspectives on support, communication, negotiation and life skill development. Qual Res Sport Exerc. 2009; doi:10.1080/19398440802673275. ID - ref46 ER - TY - CHAP AU - Côté, J. AU - Turnnidge, J. AU - Vierimaa, M. ED - Green, K. ED - Smith, A. PY - 2016 DA - 2016// TI - A personal assets approach to youth sport BT - Routledge handbook of youth sport PB - Routledge CY - New York ID - Côté2016 ER - TY - JOUR AU - Holt, N. L. AU - Neely, K. C. PY - 2011 DA - 2011// TI - Positive youth development through sport: a review JO - Rev Iberoam Psicol Ejercicio Deporte VL - 6 ID - Holt2011 ER - TY - CHAP AU - Holt, N. L. AU - Jones, M. L. ED - Holt, N. L. PY - 2008 DA - 2008// TI - Future direction for positive youth development and sport research BT - Positive youth development through sport PB - Routledge CY - New York ID - Holt2008 ER - TY - JOUR AU - Eccles, J. S. AU - Templeton, J. PY - 2002 DA - 2002// TI - Extracurricular and other after-school activities for youth JO - Rev Res Educ VL - 26 UR - https://doi.org/10.3102/0091732X026001113 DO - 10.3102/0091732X026001113 ID - Eccles2002 ER - TY - STD TI - Hansen DM, Larson RW, Dworkin JB. What adolescents learn in organized youth activities: a survey of self-reported developmental experiences. J Res Adolescence. 2003; doi:10.1111/1532-7795.1301006. ID - ref51 ER - TY - CHAP AU - Larson, R. W. AU - Jarrett, R. AU - Hansen, D. AU - Pearce, N. AU - Sullivan, P. AU - Walker, K. AU - Watkins, N. AU - Wood, D. ED - Linley, A. ED - Joseph, S. PY - 2004 DA - 2004// TI - Organized youth activities as contexts for positive development BT - Positive psychology in practice: from research to application PB - Wiley CY - New York ID - Larson2004 ER - TY - STD TI - Larson RW. Toward a psychology of positive youth development. Am Psychol. 2000; doi:10.1037//0003-066X.55.1.170. ID - ref53 ER - TY - STD TI - Whaley DE. An argument for a developmental approach in studying older adults’ physical activity. J Aging Phys Act. 2014; doi:10.1123/JAPA.2014-0133. ID - ref54 ER - TY - STD TI - Lerner JV, Bowers E, Minor K, Boyd MJ, Mueller MK, Schmid KL, Napolitano CM, Lewin-Bizan S, Lerner RM. Positive youth development: Processes, philosophies, and programs. In: Lerner RM, Easterbrooks MA, Mistry J, editors & Weiner IB, editor-in-chief. Comprehensive handbook of psychology: developmental psychology. Vol. 6. 2nd ed. New York: Wiley; 2012. p. 365–392. ID - ref55 ER - TY - STD TI - Lerner RM, Lerner JV, Almerigi JB, Theokas C, Phelps E, Gestsdottir S, Naudeau S, Jelicic H, Alberts A, Ma L, Smith LM, Bobek DL, Richman-Raphael D, Simpson I, DiDenti Christiansen E, von Eye A. Positive youth development, participation in community youth development programs, and community contributions of fifth-grade adolescents: findings from the first wave of the 4-H study of positive youth development. J Adolescence. 2005; doi:10.1177/0272431604272461. ID - ref56 ER - TY - JOUR AU - Cardenas, D. AU - Henderson, K. A. AU - Wilson, B. E. PY - 2009 DA - 2009// TI - Physical activity and senior games participation: benefits, constraints, and behaviors JO - J Aging Phys Act VL - 17 UR - https://doi.org/10.1123/japa.17.2.135 DO - 10.1123/japa.17.2.135 ID - Cardenas2009 ER - TY - STD TI - Dionigi R. Competitive sport as leisure in later life: negotiations, discourse, and aging. Leisure Sci. 2006; doi:10.1080/01490400500484081. ID - ref58 ER - TY - STD TI - Dionigi RA, Horton S, Baker J. Negotiations of the ageing process: older adults’ stories of sports participation. Sport Educ Soc. 2013; doi:10.1080/13573322.2011.589832. ID - ref59 ER - TY - JOUR AU - Dionigi, R. AU - O’Flynn, G. PY - 2007 DA - 2007// TI - Performance discourses and old age: what does it mean to be an older athlete? JO - Sociol Sport J VL - 24 UR - https://doi.org/10.1123/ssj.24.4.359 DO - 10.1123/ssj.24.4.359 ID - Dionigi2007 ER - TY - STD TI - Eman J. The role of sports in making sense of the process of growing old. J Aging Stud. 2012; doi:10.1016/j.jaging.2012.06.006. ID - ref61 ER - TY - STD TI - Hodge K, Allen JB, Smellie L. Motivation in masters sport: achievement and social goals. Psychol Sport Exerc. 2008; doi:10.1016/j.psychsport.2007.03.002. ID - ref62 ER - TY - STD TI - Newton M, Fry M. Senior Olympians’ achievement goals and motivational responses. J Aging Phys Act. 1998; doi:10.1123/japa.6.3.256. ID - ref63 ER - TY - STD TI - Hastings DW, Kurth SB, Schloder M, Cyr D. Reasons for participating in a serious leisure career: comparison of Canadian and U.S. masters swimmers. Int Rev Sociol Sport. 1995; doi:10.1177/101269029503000106. ID - ref64 ER - TY - STD TI - Langley DJ, Knight SM. Continuity in sport participation as an adaptive strategy in the aging process: a lifespan narrative. J Aging Phys Act. 1999; doi:10.1123/japa.7.1.32. ID - ref65 ER - TY - STD TI - Young BW, de Jong GC, Medic N. Examining relationships between passion types, conflict and negative outcomes in masters athletes. Int J Sport Exerc Psychol. 2014; doi:10.1080/1612197X.2014.932822. ID - ref66 ER - TY - JOUR AU - Baker, J. AU - Côté, J. AU - Deakin, J. PY - 2006 DA - 2006// TI - Patterns of early involvement in expert and nonexpert masters triathletes JO - Res Q Exerc Sport VL - 77 UR - https://doi.org/10.1080/02701367.2006.10599375 DO - 10.1080/02701367.2006.10599375 ID - Baker2006 ER - TY - STD TI - De Pero R, Amici S, Benvenuti C, Minganti C, Capranica L, Pesce C. Motivation for sport participation in older Italian athletes: the role of age, gender and competition level. Sport Sci Health. 2009; doi:10.1007/s11332-009-0078-6. ID - ref68 ER - TY - STD TI - Dionigi R. Leisure and identity management in later life: understanding competitive sport participation among older adults. World Leis J. 2002; doi:10.1080/04419057.2002.9674274. ID - ref69 ER - TY - JOUR AU - Dionigi, R. A. AU - Baker, J. AU - Horton, S. PY - 2011 DA - 2011// TI - Older athletes’ perceived benefits of competition JO - Int J Sport Soc VL - 2 UR - https://doi.org/10.18848/2152-7857/CGP/v02i02/53869 DO - 10.18848/2152-7857/CGP/v02i02/53869 ID - Dionigi2011 ER - TY - STD TI - Gillett P, Kelly S. ‘Non-local’ masters games participants: an investigation of competitive active sport tourist motives. J Sport Tour. 2006; doi:10.1080/14775080701400760. ID - ref71 ER - TY - STD TI - Stevenson CL. Seeking identities: towards an understanding of the athletic careers of masters swimmers. Int Rev Sociol Sport. 2002; doi:10.1177/1012690202037002001. ID - ref72 ER - TY - STD TI - Wigglesworth JC, Young BW, Medic N, Grove JR. Examining gender differences in the determinants of masters swimmers’ sport commitment. Int J Sport Exerc Psychol. 2012; doi:10.1080/1612197X.2012.691232. ID - ref73 ER - TY - STD TI - Kirby JB, Kluge MA. Going for the gusto: competing for the first time at age 65. J Aging Phys Act. 2013; doi:10.1123/japa.21.3.290. ID - ref74 ER - TY - STD TI - Tulle E. Running to run: embodiment, structure and agency amongst veteran elite runners. Sociology. 2007; doi:10.1177/0038038507074978. ID - ref75 ER - TY - STD TI - Vallerand JR, Young BW. Are adult sportspersons and exercisers that different? Exploring how motives predict commitment and lapses. Int J Sport Exerc Psychol. 2014; doi:10.1080/1612197X.2014.932823. ID - ref76 ER - TY - STD TI - Dionigi RA. Resistance and empowerment through leisure: the meaning of competitive sport participation to older adults. Loisir Soc-Soc Leis. 2002; doi:10.1080/07053436.2002.10707591. ID - ref77 ER - TY - STD TI - Golding JM, Ungerleider S. Social resources and mood among masters track and field athletes. J Appl Sport Psychol. 1991; doi:10.1080/10413209108406440. ID - ref78 ER - TY - STD TI - Santi G, Bruton A, Pietrantoni L, Mellalieu S. Sport commitment and participation in masters swimmers: the influence of coach and teammates. Euro J Sport Sci. 2014; doi:10.1080/17461391.2014.915990. ID - ref79 ER - TY - STD TI - Grant BC. ‘You’re never too old’: beliefs about physical activity and playing sport in later life. Ageing Soc. 2001; doi:10.1017/S0144686X01008492. ID - ref80 ER - TY - STD TI - Young BW, Medic N. Examining social influences on the sport commitment of masters swimmers. Psychol Sport Exerc. 2011; doi:10.1016/j.psychsport.2010.09.004. ID - ref81 ER - TY - STD TI - Heo J, Culp B, Yamada N, Won Y. Promoting successful aging through competitive sports participation: insights from older adults. Qual Health Res. 2013; doi:10.1177/1049732312457247. ID - ref82 ER - TY - STD TI - Stenner BJ, Mosewich AD, Buckley JD. An exploratory investigation into the reasons why older people play golf. Qual Res Sport Exerc Health. 2016; doi:10.1080/2159676X.2016.1148773. ID - ref83 ER - TY - JOUR AU - Heo, J. AU - Lee, I. H. AU - Kim, J. AU - Stebbins, R. A. PY - 2012 DA - 2012// TI - Understanding the relationships among central characteristics of serious leisure: an empirical study of older adults in competitive sports JO - J Leis Res VL - 44 ID - Heo2012 ER - TY - STD TI - Martin-Matthews A. Ten years of the CIHR Institute of Aging: building on strengths, addressing gaps, shaping the future. Can J Aging. 2011; doi:10.1017/S0714980811000134. ID - ref85 ER - TY - STD TI - McPherson B. Sociocultural perspectives on aging and physical activity. J Aging Phys Act. 1994; doi:10.1123/japa.2.4.329. ID - ref86 ER - TY - STD TI - Sydney 2009 World Masters Games Organising Committee. Sydney 2009 world masters games: final report. 2010. https://imga.ch/assets/Uploads/Reports/WMG-2009-Final-Report.pdf. Accessed 6 Nov 2016. UR - https://imga.ch/assets/Uploads/Reports/WMG-2009-Final-Report.pdf ID - ref87 ER - TY - STD TI - Lerner RM, Hershberg RM, Hilliard LJ, Johnson SK. Concepts and theories of human development. In: Bornstein MH, Lamb ME, editors. Developmental science: an advanced textbook. New York: Psychology Press. 7th ed. 2015. p. 3–41. ID - ref88 ER - TY - BOOK AU - Lerner, R. M. PY - 2004 DA - 2004// TI - Liberty: thriving and civic engagement among America’s youth PB - Sage CY - Thousand Oaks ID - Lerner2004 ER - TY - JOUR AU - Weiss, M. R. AU - Wiese-Bjornstal, D. M. PY - 2009 DA - 2009// TI - Promoting positive youth development through physical activity JO - President’s Counc Fit Sports Res Dig VL - 10 ID - Weiss2009 ER - TY - JOUR AU - Lerner, R. M. AU - Fisher, C. B. AU - Weinberg, R. A. PY - 2000 DA - 2000// TI - Applying developmental science in the 21st century: international scholarship for our times JO - Int J Behav Dev VL - 24 UR - https://doi.org/10.1080/016502500383430 DO - 10.1080/016502500383430 ID - Lerner2000 ER - TY - CHAP AU - Silbereisen, R. K. AU - Lerner, R. M. ED - Silbereisen, R. K. ED - Lerner, R. M. PY - 2007 DA - 2007// TI - Approaches to positive youth development: a view of the issues BT - Approaches to positive youth development PB - Sage CY - Thousand Oaks UR - https://doi.org/10.4135/9781446213803.n1 DO - 10.4135/9781446213803.n1 ID - Silbereisen2007 ER - TY - STD TI - Slavich GM, Cole SW. The emerging field of human social genomics. Clin Psychol Sci. 2013; doi:10.1177/2167702613478594. ID - ref93 ER -