@BOOK{Sato
        , AUTHOR = {Sato, Hajime}
        , TITLE = {Algebraic Topology: An Intuitive Approach}
        , PUBLISHER = {American Mathematical Society}
        , YEAR = {1999}
        , Edition = {First}
        }

@incollection{Boehm83
        , author = {Boehm, Wolfgang}
        , title = {Generating the B\'ezier Points of Triangular Splines}
        , booktitle = {Surfaces in CAGD}
        , publisher = {North-Holland Publishing Company}
        , year = {1983}
        , editor = {Barnhill, R.E. and Boehm, W.}
        , pages = {77-91}
        }
 

@INPROCEEDINGS{Seidel95
        , AUTHOR = {Pfeifle, P and Seidel, H.-P.}
        , TITLE = {Fitting triangular {B}-splines to Functinal Scattered Data}
        , BOOKTITLE = {Graphics Interface '95}
        , YEAR = {1995}
        , PAGES = {80-88}
        }

@article{Veltkamp92,
    author = {Veltkamp, R. C.},
    title = {Survey of Continuities of Curves and Surfaces},
    journal = {Computer Graphics Forum},
    volume = {11},
    number = {2},
    pages = {93-112},
    year = {1992}
    }