TY  - JOUR
AU  - Vítek, Václav
TI  - Periodic solutions of a weakly nonlinear hyperbolic equation in $E_2$ and $E_3$
JO  - Applications of Mathematics
PY  - 1974
SP  - 232
EP  - 245
VL  - 19
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.21136/AM.1974.103537/
DO  - 10.21136/AM.1974.103537
LA  - en
ID  - 10_21136_AM_1974_103537
ER  -