GARBAČIAUSKIENĖ, M. About stages of distinguishing as a thought operation. Psichologija, [S. l.], v. 8, p. 27–31, 1966. DOI: 10.15388/Psichol.1966.8.9294. Disponível em: https://test.zurnalai.vu.lt/psichologija/article/view/9294. Acesso em: 26 oct. 2025.