%0 Journal Article %A Došlý, Ondřej %A Osička, Jan %T On oscillation criteria for self-adjoint linear differential equation of the fourth order %J Časopis pro pěstování matematiky %D 1990 %P 351-359 %V 115 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.21136/CPM.1990.118413/ %R 10.21136/CPM.1990.118413 %G en %F 10_21136_CPM_1990_118413