TY - JOUR AU - Cheng, Sui-Sun TI - On a class of fourth order half-linear differential equations JO - Czechoslovak Mathematical Journal PY - 1980 SP - 84 EP - 97 VL - 30 IS - 1 UR - http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1980.101658/ DO - 10.21136/CMJ.1980.101658 LA - en ID - 10_21136_CMJ_1980_101658 ER -