ROSSA, Agnieszka; SOCHA, Lesław; SZYMAŃSKI, Andrzej. Hybrid Dynamic and Fuzzy Models of Morality. Poland: Lodz University Press,2018. DOI: 10.18778/8088-926-2. Disponível em: https://press.uni.lodz.pl/index.php/wul/catalog/book/1251. Acesso em: 14 feb. 2026.