%0 Journal Article %A Ismail, Hassan Nasr Ahmed %T Generalized periodic overimplicit multistep methods (GPOM methods) %J Applications of Mathematics %D 1979 %P 250-272 %V 24 %N 4 %U http://geodesic.mathdoc.fr/articles/10.21136/AM.1979.103805/ %R 10.21136/AM.1979.103805 %G en %F 10_21136_AM_1979_103805