TY - JOUR AU - Došlý, Ondřej TI - The multiplicity criteria for zero points of second order differential equations JO - Mathematica slovaca PY - 1992 SP - 181 EP - 193 VL - 42 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MASLO_1992__42_2_a5/ LA - en ID - MASLO_1992__42_2_a5 ER -