%0 Journal Article %A >Werner Hässelbarth %T A Combinatorial Description of Structure and Properties of Chemical Compounds %J Séminaire lotharingien de combinatoire %D 1983 %V 07 %I mathdoc %U http://geodesic.mathdoc.fr/item/SLC_1983_07_a4/ %F SLC_1983_07_a4