TY  - JOUR
AU  - I. Kubiaczyk
TI  - Existence theorem for multivalued hyperbolic equation
JO  - Commentationes Mathematicae
PY  - 1987
SP  -  115
EP  - 119
VL  - 27
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.14708/cm.v27i1.6191/
DO  - 10.14708/cm.v27i1.6191
LA  - pl
ID  - 10_14708_cm_v27i1_6191
ER  -