%0 Journal Article %A Nemba, Robert M. %A Emadak, Alphonse %T Direct enumeration of chiral and achiral graphs of a polyheterosubstituted monocyclic cycloalkane %J Journal of integer sequences %D 2002 %V 5 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/JIS_2002__5_1_a4/ %G en %F JIS_2002__5_1_a4