TY - JOUR AU - Došlý, Ondřej AU - Osička, Jan TI - On oscillation criteria for self-adjoint linear differential equation of the fourth order JO - Časopis pro pěstování matematiky PY - 1990 SP - 351 EP - 359 VL - 115 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.21136/CPM.1990.118413/ DO - 10.21136/CPM.1990.118413 LA - en ID - 10_21136_CPM_1990_118413 ER -