ĆITIĆ, Marko; GOVEDARICA, Vidan. Convex Lattice Heptagons with Boundary Trapezoids. Sarajevo Journal of Mathematics, [S. l.], v. 21, n. 02, 2026. DOI: 10.5644/SJM.21.02.12. Disponível em: https://sjm.anubih.ba/index.php/sjm/article/view/570. Acesso em: 5 feb. 2026.