TY - JOUR AU - Došlý, Ondřej TI - Transformations of linear Hamiltonian systems preserving oscillatory behaviour JO - Archivum mathematicum PY - 1991 SP - 211 EP - 219 VL - 27 IS - 3-4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/ARM_1991__27_3-4_a10/ LA - en ID - ARM_1991__27_3-4_a10 ER -