TY  - JOUR
AU  - Kurzweil, Jaroslav
TI  - Van der Pol perturbation of the equation for a vibrating string
JO  - Czechoslovak Mathematical Journal
PY  - 1967
SP  - 558
EP  - 608
VL  - 17
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1967.100803/
DO  - 10.21136/CMJ.1967.100803
LA  - en
ID  - 10_21136_CMJ_1967_100803
ER  -