TY  - JOUR
AU  - L. B. Rapoport
TI  - Sign-definiteness of a quadratic form under quadratic constraints
JO  - Doklady Akademii Nauk
PY  - 1988
SP  - 822
EP  - 826
VL  - 298
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1988_298_4_a11/
LA  - ru
ID  - DAN_1988_298_4_a11
ER  -