TY  - JOUR
AU  - A. V. Isaev
TI  - Reduction of the problem of the classification of tubular quadrics to the solving of a system of differential equations of a special form
JO  - Matematičeskie zametki
PY  - 1989
SP  - 10
EP  - 18
VL  - 45
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MZM_1989_45_5_a1/
LA  - ru
ID  - MZM_1989_45_5_a1
ER  -