Bagdonas, Albinas, Antanas Kairys, and Olga Zamalijeva. “The Guidelines of Researches of Senility, Aging and Functioning of Old People: A Byopsychosocial Approach”. Socialinė teorija, empirija, politika ir praktika 15 (July 27, 2017): 80–102. Accessed May 2, 2024. https://www.journals.vu.lt/STEPP/article/view/10811.