Complete systems of invariants of $m$-tuples for fundamental groups of a two-dimensional bilinear-metric space over the field of rational numbers . Uzbek Mathematical Journal, [S. l.], v. 69, n. 4, p. 53–69, 2025. DOI: 10.29229/uzmj.2025-4-7. Disponível em: https://uzmj.mathinst.uz/index.php/uzmj/article/view/108.. Acesso em: 4 dec. 2025.