TY  - JOUR
AU  - I. I. Danilyuk
TI  - On a problem involving a skew derivative for first order elliptical systems
JO  - Doklady Akademii Nauk
PY  - 1958
SP  - 9
EP  - 12
VL  - 122
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1958_122_1_a0/
LA  - ru
ID  - DAN_1958_122_1_a0
ER  -