%0 Journal Article %A Došlý, Ondřej %T Transformations of linear Hamiltonian systems preserving oscillatory behaviour %J Archivum mathematicum %D 1991 %P 211-219 %V 27 %N 3-4 %I mathdoc %U http://geodesic.mathdoc.fr/item/ARM_1991__27_3-4_a10/ %G en %F ARM_1991__27_3-4_a10