TY - JOUR AU - Regenda, Ján TI - Oscillation theorems for a class of linear fourth order differential equations JO - Czechoslovak Mathematical Journal PY - 1984 SP - 113 EP - 120 VL - 34 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1984.101930/ DO - 10.21136/CMJ.1984.101930 LA - en ID - 10_21136_CMJ_1984_101930 ER -