TY  - JOUR
AU  - B. A. Kats
TI  - On the Riemann problem with a coefficient admitting a singularity of the null-pole type
JO  - Trudy seminara po kraevym zadačam
PY  - 1980
SP  - 89
EP  - 99
VL  - 17
IS  - 17
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/KUKZ_1980_17_17_a10/
LA  - ru
ID  - KUKZ_1980_17_17_a10
ER  -