Herpainé Lakó, Judit. “The Issues of the Relationship of Grandparents and Grandchildren in the Light of Physical Activity”. European Journal of Mental Health 9, no. 2 (December 6, 2014): 178–194. Accessed March 1, 2026. https://ejmh.semmelweis.hu/ejmh34test/index.php/ejmh/article/view/116.