TSVETANOVA, A.; STELA ZHELEZOVA, S. Z. On the structure of cyclic Steiner triple systems of small order. Mathematics and Education in Mathematics, [S. l.], v. 55, p. 433–441, 2026. DOI: 10.55630/mem.2026.55.433-441. Disponível em: https://smb.math.bas.bg/mem/index.php/memjournal/article/view/265. Acesso em: 5 oct. 2026.