V. Jurkuvėnas, O. Zamalijeva, V. Pakalniškienė, A. Kairys, and A. Bagdonas, “Social network size, personality and well-being in preretirement and retirement”, PSY, vol. 55, pp. 7–21, Jul. 2017, doi: 10.15388/Psichol.2017.55.10733.