%0 Journal Article %A Izidor Hafner %T Dissection of Triangular Hebesphenorotunda, Steward Toroid, and Drilled Pentagonal Gyrobicupola %J Visual Mathematics %D 2007 %V 9 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/VM_2007_9_2_a3/ %F VM_2007_9_2_a3