Walęcka-Matyja, Katarzyna Kamila, and Katarzyna Janiak. 2026. “The Role of Familism and the Quality of Sibling Relationships in Predicting Loneliness in Late Adulthood”. Current Problems of Psychiatry 27 (August): 95-110. https://doi.org/10.12923/2353-8627/2026-0007.