ГАВРИЛКІВ, Володимир Михайлович. SEMIGROUPS OF LINKED UPFAMILIES: Array. PRECARPATHIAN BULLETIN OF THE SHEVCHENKO SCIENTIFIC SOCIETY. Number, [S. l.], n. 1(29), p. 104–112, 2019. Disponível em: https://pvntsh.nung.edu.ua/index.php/number/article/view/145. Acesso em: 19 apr. 2024.