KAMAKU, W.; MUTEMBEI, J.; KIVUNGE, B. Positive P 0,1 Matrix Completion Problem for Order Four Digraphs with Zero, One, Two and Three Arcs. International Journal of Sciences: Basic and Applied Research (IJSBAR), [S. l.], v. 34, n. 3, p. 22–30, 2017. Disponível em: https://www.gssrr.org/index.php/JournalOfBasicAndApplied/article/view/7671. Acesso em: 29 apr. 2024.