DEMETROVICS, J.; THI, Vu Duc. Describing candidate keys by hypergraphs. COMPUTING AND INFORMATICS, [S. l.], v. 18, n. 2, p. 191–207, 2012. Disponível em: https://www.cai.sk/ojs/index.php/cai/article/view/607. Acesso em: 2 may. 2024.