TY  - JOUR
AU  - B. N. Delone
AU  - S. S. Ryshkov
TI  - Extremal problems of the theory of positive quadratic forms
JO  - Informatics and Automation
PY  - 1971
SP  - 203
EP  - 223
VL  - 112
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/TRSPY_1971_112_a12/
LA  - ru
ID  - TRSPY_1971_112_a12
ER  -