Bagdonas, A., Kairys, A., & Zamalijeva, O. (2017). The Guidelines of Researches of Senility, Aging and Functioning of Old People: a Byopsychosocial Approach. Socialinė Teorija, Empirija, Politika Ir Praktika, 15, 80-102. https://doi.org/10.15388/STEPP.2017.15.10811