KALYAN SINHA. The non-negative $Q_1$-matrix completion problem. Malaya Journal of Matematik, India, v. 7, n. 04, p. 651–658, 2019. DOI: 10.26637/MJM0704/0007. Disponível em: https://www.malayajournal.org/index.php/mjm/article/view/1136. Acesso em: 22 dec. 2024.