LIPEIKIENĖ, Joana; PINKEVIČIŪTĖ, Ingrida. Investigation of virtual collaborative learning environment. Lietuvos matematikos rinkinys, [S. l.], v. 43, n. spec., p. 259–264, 2003. DOI: 10.15388/LMR.2003.32415. Disponível em: https://journals.vu.lt./LMR/article/view/32415. Acesso em: 19 apr. 2025.