TY - JOUR AU - Futák, Ján TI - On boundedness and stability of solutions of nonlinear second order differential equations in Hilbert spaces JO - Archivum mathematicum PY - 1987 SP - 147 EP - 154 VL - 23 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/ARM_1987__23_3_a1/ LA - en ID - ARM_1987__23_3_a1 ER -