@article {Coin,
    AUTHOR = {Gaucher, P.},
     TITLE = {Combinatorics of branchings in higher dimensional automata},
   JOURNAL = {Theory Appl. Categ.},
  FJOURNAL = {Theory and Applications of Categories},
    VOLUME = {8},
      YEAR = {2001},
     PAGES = {No.\ 12, 324--376 (electronic)},
      ISSN = {1201-561X},
   MRCLASS = {18G30 (68Q85)},
  MRNUMBER = {MR1847036 (2002g:18020)},
MRREVIEWER = {Harold Hastings},
}