TY  - JOUR
AU  - Kh. A. Chikhanov
TI  - The equation of mixed type with an arbitrary line of degeneracy
JO  - Trudy seminara po kraevym zadačam
PY  - 1967
SP  - 148
EP  - 152
VL  - 4
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/KUKZ_1967_4_4_a17/
LA  - ru
ID  - KUKZ_1967_4_4_a17
ER  -