Does anyone by chance have a copy of Evrard, M. ???Homotopie des complexes simpliciaux et cubiques???. Preprint (1976). to be made available? There has been some discussion of varieties of cubical categories on http://nforum.mathforge.org/discussion/6528/cubes-with-diagonals/#Item_2 Ronnie -- [For admin and other information see: http://www.mta.ca/~cat-dist/ ]