H. Hajnal, “Split or steal or gift: Nash equilibria under altruistically extended payoffs”, in Navigating the Future: Digitalization, Sustainability, and International Business, Éva Kuruczleki, Ed. Szegedi Tudományegyetem Gazdaságtudományi Kar, 2025, pp. 76–96. doi: 10.14232/gtk.nfdsib.2025.5.