@techReport{BernardiniFP-WMP1991, author = {F. Bernardini and V. Ferrucci and A. Paoluzzi}, title = {Working with Multidimensional Polyhedra}, institution = {Dip. di Informatica e Sistemistica, Universit\`a 'La Sapienza'}, number = {07-91}, month = {April}, year = 1991, }