TY  - JOUR
AU  - N. Yu. Kapustin
AU  - K. B. Sabitov
TI  - Solution of a problem in the theory of the Frankl' problem for equations of mixed type
JO  - Differencialʹnye uravneniâ
PY  - 1991
SP  - 60
EP  - 68
VL  - 27
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1991_27_1_a7/
LA  - ru
ID  - DE_1991_27_1_a7
ER  -