PERZYŃSKI, Janusz; MICHALAK, Monika; PERZYŃSKA-STARKIEWICZ, Aneta. Psychotic depression or schizophrenia?. Current Problems of Psychiatry, Lublin, Poland, v. 13, n. 3, p. 157–159, 2012. Disponível em: https://czasopisma.umlub.pl/cpp/article/view/2381. Acesso em: 6 sep. 2025.