@article{DAN_1960_130_1_a5,
     author = {S. A. Safonov},
     title = {Groups with a class of unattainable isoordic $\Pi d$-subgroups},
     journal = {Doklady Akademii Nauk},
     pages = {26--28},
     publisher = {mathdoc},
     volume = {130},
     number = {1},
     year = {1960},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1960_130_1_a5/}
}