TY  - JOUR
AU  - Peter R. Popivanov
TI  - MInteraction of Singularities to the Solutions of Some Classes of Semilinear Hyperbolic Equations and Systems with One and Two Space Variables
JO  - Mathematica balkanica
PY  - 2004
SP  - 173
VL  - 18
IS  - 1-2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MABA_2004_18_1-2_a17/
ID  - MABA_2004_18_1-2_a17
ER  -