TY - JOUR AU - Ĺ eda, Valter TI - A class of differential equations similar to linear equations JO - Mathematica slovaca PY - 1980 SP - 433 EP - 441 VL - 30 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MASLO_1980__30_4_a11/ LA - en ID - MASLO_1980__30_4_a11 ER -