TY - JOUR AU - J.-M. Belley AU - G. Fournier TI - Almost periodic weak solutions to forced pendulum type equations without friction. JO - Aequationes mathematicae PY - 1992 SP - 100 EP - 108 VL - 44 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/AM2_1992__44_1_137483/ ID - AM2_1992__44_1_137483 ER -