TY - BOOK AU - Farkas,Mikl�os ED - Bolyai Janos Matematikai Tarsulat ED - Colloquium on Qualitative Theory of Differential Equations (1979 : Szeged, Hungary) TI - Qualitative theory of differential equations PY - 1981/// CY - Amsterdam PB - North-Holland KW - Differential equations KW - Numerical solutions N1 - Papers based on lectures given at the Colloquium on Qualitative Theory of Differential Equations organized in Szeged, Hungary from 27 to the 31st August 1979 ER -