Tetrahedra passing through a triangular hole, and tetrahedra fixed by a planar frame

Imre Bárány, Hiroshi Maehara, Norihide Tokushige. Tetrahedra passing through a triangular hole, and tetrahedra fixed by a planar frame. Comput. Geom., 45(1-2):14-20, 2012. [doi]

Abstract

Abstract is missing.