TY  - JOUR
AU  - A. G. Kuz'min
TI  - On the behavior of the characteristics of equations of mixed type near the line of degeneracy
JO  - Differencialʹnye uravneniâ
PY  - 1981
SP  - 2052
EP  - 2063
VL  - 17
IS  - 11
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1981_17_11_a12/
LA  - ru
ID  - DE_1981_17_11_a12
ER  -