@book{ALEXANDROFF60,
  author        = "Paul Alexandroff",
  title         = "Elementary Concepts of Topology",
  publisher     = "Dover,Inc.",
  year          = "1961"
}

@article{BIDARRA98,
    AUTHOR = " Bidarra,R. and Kraker,K.J. and Bronsvoort,W.F ",
    TITLE = " Representation and management of feature information in a cellular model",
    JOURNAL = " Computer-Aided Design",
    VOLUME = " 30 ",
    NUMBER  = " 4 ",
    PAGES = " 301-313 ",
    YEAR = " 1998 "
    }

@article{CAVALCANTI97,
    AUTHOR = " Cavalcanti,P.R. and Carvalho,P.C.P and Martha,L.F.",
    TITLE = " Non-manifold modelling: an approach based on spatial subdivision ",
    JOURNAL = " Computer-Aided Design",
    VOLUME = " 29 ",
    NUMBER= "3",
    PAGES = " 209-220 ",
    YEAR = " 1997 "
    }





@inproceedings{BJORNER87,
    AUTHOR = " Bjorner,A. and Kalai,G. ",
    TITLE = "  An extended Euler-Poincare theorem ",
    BOOKTITLE = " ",
    YEAR = "  1987 "
    }





@phdthesis{DESBARATS01,
  author        = "Pascal Desbarats",
  title         = "Structuration d'images segment\'ees 3D discr\`etes",
  school        = "Universit\'e Bordeaux I",
  year          = "2001"
}





@techreport{DESBARATS03,
    AUTHOR = " Desbarats,P. and Gueorguieva,S.",
    TITLE = " CW complexes: topological mainframe for numerical representations of objects",
    INSTITUTION = " LaBRI, UMR 5800, Universit\'e Bordeaux 1",
    TYPE = " RR ",
    NOTE = " RR-1291-03",
    YEAR = " 2003 "
    }





@book{FOMENKO97,
  author        = "Fomenko,A.T. and S.V.Mateev",
  title         = "Algorithms and Computer Methods for Three-Manifolds",
  publisher     = "Kluwer Academic Publishers",
  year          = "1997"
}