TY  - JOUR
AU  - Hristov, Tsvetan
AU  - Popivanov, Nedyu
AU  - Schneider, Manfred
TI  - Quasi-Regular Solutions for 3D Equations of Tricomi and Keldish Types
JO  - Mathematics and Education in Mathematics
PY  - 2012
SP  - 173
EP  - 179
VL  - 41
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MEM_2012_41_1_a15/
LA  - en
ID  - MEM_2012_41_1_a15
ER  -