RICHARDS, D. and DECU, A. 2017. SOCIAL COOPERATION WITHIN VIRTUAL WORLDS. OLD SOCIAL PHENOMENA EMERGING IN NEW ENVIRONMENTS. Studia Universitatis Babeș-Bolyai Philosophia. 62, 1 (Apr. 2017), 23 –. DOI:https://doi.org/10.24193/subbphil.2017.1.02.