%0 Journal Article %A Paulus Gerdes %T African dance rattle capsules from Cameroon to Madagascar, from Somalia to Mozambique: Plaiting a symmetric, nonahedral shape %J Visual Mathematics %D 2012 %V 14 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/VM_2012_14_3_a2/ %G en %F VM_2012_14_3_a2