%0 Journal Article %A K. Abrahamson %T On the Modality of Convex Polygons. %J Discrete & computational geometry %D 1990 %P 409-420 %V 5 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DCG_1990__5_2_131129/ %F DCG_1990__5_2_131129