TY  - JOUR
AU  - I. Ya. Viner
TI  - Partial differential equations with involutions
JO  - Differencialʹnye uravneniâ
PY  - 1970
SP  - 1320
EP  - 1322
VL  - 6
IS  - 7
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1970_6_7_a23/
LA  - ru
ID  - DE_1970_6_7_a23
ER  -