TY  - JOUR
AU  - Z. Kamont
AU  - W. Pawelski
TI  - On the characteristics for a system of partial differential equations of the first order in a special case
JO  - Annales Polonici Mathematici
PY  - 1974
SP  - 215
EP  - 228
VL  - 29
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/ap-29-3-215-228/
DO  - 10.4064/ap-29-3-215-228
LA  - en
ID  - 10_4064_ap_29_3_215_228
ER  -