On the Enumeration of the Simple 3-Polyhedra - Engel (2002)(Correct)
research papers 14 Peter Engel Simple 3-polyhedra Acta Cryst. 2003)A59,
On the enumeration of the simple 3-polyhedra Peter Engel Laboratory of Crystallography, University of journals.iucr.org/a/issues/2003/01/00/au0308/au0308.pdf