Kuszniar, Klaudia, Ewelina Firlej, Mariola Janiszewska, Jagoda Konarska, Paulina Kustra, and Agnieszka Barańska. 2017. “Needs and Ways to Meet Them by Adolescents During Adolescence”. Journal of Education, Health and Sport 7 (8):894-906. https://apcz.umk.pl/JEHS/article/view/4861.