TY  - JOUR
AU  - V. P. Gromyko
TI  - A new criterion of specialty for $\pi d$-groups with a given number of classes of unattainable iso-ordic $\pi d$-subgroups
JO  - Doklady Akademii Nauk
PY  - 1963
SP  - 23
EP  - 26
VL  - 151
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1963_151_1_a4/
LA  - ru
ID  - DAN_1963_151_1_a4
ER  -