TY  - JOUR
AU  - Jürgen Pöschel
TI  - Quasi-periodic solutions for a nonlinear wave equation.
JO  - Commentarii mathematici Helvetici
PY  - 1996
SP  - 269
VL  - 71
IS  - 2
PB  - mathdoc
UR  - https://geodesic-test.mathdoc.fr/item/CMH_1996__71_2_140400/
LA  - un
ID  - CMH_1996__71_2_140400
ER  -