FU , C.-M.; FU , H.-L. SOME RESULTS ON DISJOINT STEINER QUADRUPLE SYSTEMS. Tamkang Journal of Mathematics, [S. l.], v. 21, n. 4, p. 345–349, 1990. DOI: 10.5556/j.tkjm.21.1990.4681. Disponível em: https://journals.math.tku.edu.tw/index.php/TKJM/article/view/4681. Acesso em: 21 nov. 2024.