TY  - GEN
AU  - Lyapin, E. S.
AU  - Lesokhin, M.M.
AU  - Aizenshtat, A.Ya.
TI  - Exercises in group theory
U1  - 512.86 
PY  - 1972///
CY  - New York
PB  - Plenum Press
KW  - Topological groups
KW  - Sets theory
KW  - Group theory
KW  - Algebra
N1  - P.233-235
ER  -