1. Interpolation to arbitrary data on a surface;Barnhill,1987
2. Methods for constructing surfaces on surfaces;Barnhill,1991
3. Fat surfaces: A trivariate approach to triangle-based interpolation on surfaces;Barnhill;Computer Aided Geometric Design,1992
4. Differential Geometry of Curves and Surfaces;do Carmo,1976
5. Splines minimizing rotation-invariant semi-norms in Sobolev spaces;Duchon,1977