TY  - JOUR
AU  - S. S. Ryshkov
AU  - R. M. Erdahl
TI  - Dual systems of integral vectors (general questions and applications to the geometry of positive quadratic forms)
JO  - Sbornik. Mathematics
PY  - 1993
SP  - 541
EP  - 554
VL  - 74
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SM_1993_74_2_a14/
LA  - en
ID  - SM_1993_74_2_a14
ER  -