ZOLFAGHARY, Parvaneh. DESCRIPTION OF ORDER 3 HYPERGROUPS OVER GROUP ARISING FROM DIHEDRAL GROUP $D_9$. Proceedings of the YSU A: Physical and Mathematical Sciences, Yerevan, Armenia, v. 47, n. 2 (231), p. 28–33, 2013. DOI: 10.46991/PYSU:A/2013.47.2.028. Disponível em: https://pub.ysu.am/index.php/proceedings-phys-math/article/view/vol47_no2_2013_pp028-033. Acesso em: 22 nov. 2024.