Cogbill, Allen H. (1990) Gravity terrain corrections calculated using Digital Elevation Models, Geophysics, 55(1), 102-106.
Forsythe, G. E., Malcolm, M. A., and Moler, C. B. (1977) Computer Methods for Mathematical Computations, Prentice-Hall, Inc., Englewood Cliffs, New Jersey, xi+259 pages.
Renka, Robert J. (1984) Algorithm 624, Triangulation and interpolation at arbitrary points in a plane, ACM Trans. on Math. Software, 10(4), 440-442.
Renka, R. J. and A. K. Cline (1984) A triangle-based C1 interpolation method, Rocky Mt. Jour. of Mathematics, 14(1), 223-237.
Renka, R. J. (1996) Algorithm 751: TRIPACK: A constrained two-dimensional Delauney triangulation package, ACM Trans. on Math. Software, 22(1), 1-8.
Renka, R. J. (1996) Algorithm 752: SRFPACK: Software for scattered data fitting with a constrained surface under tension, ACM Trans. on Math. Software, 22(1), 9-17.