@article{UZERU_2022_56_1_a3,
     author = {Sh. K. Navasardyan},
     title = {Perfectly stable and normal subgroups},
     journal = {Proceedings of the Yerevan State University. Physical and mathematical sciences},
     pages = {27--32},
     publisher = {mathdoc},
     volume = {56},
     number = {1},
     year = {2022},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/UZERU_2022_56_1_a3/}
}