KALENDA, Česlovas. Ecomoral Imperative: Sources and Content. Problemos, [S. l.], v. 49, p. 61–68, 1996. DOI: 10.15388/Problemos.1996.49.6993. Disponível em: https://www.zurnalai.vu.lt/problemos/article/view/6993. Acesso em: 7 nov. 2025.