Bąk, Jadwiga, et al. “Integracja międzypokoleniowa przedszkolaków Z Seniorami Cz. I. Opinie osób Starszych = Intergenerational Integration Between Preschool Children and Elderly People Part I. Opinions of the Elderly”. Journal of Education, Health and Sport, vol. 6, no. 9, Sept. 2016, pp. 498-05, https://apcz.umk.pl/JEHS/article/view/3867.