TY  - JOUR
AU  - G. A. Margulis
TI  - On the action of unipotent groups in a~lattice space
JO  - Sbornik. Mathematics
PY  - 1971
SP  - 549
EP  - 554
VL  - 15
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SM_1971_15_4_a3/
LA  - en
ID  - SM_1971_15_4_a3
ER  -