S. Petik K, Kézdy A, Kocsis F. Learning Projects and Their Background Motivations: Relationships with Mental Health in Midlife and Later Life. Eur. J. Ment. Health [Internet]. 2013 Dec. 15 [cited 2024 Nov. 23];8(2), 187-211. Available from: https://ejmh.semmelweis.hu/test/index.php/ejmh/article/view/102