1. G. Allasia, R. Cavoretto, A. De Rossi, Hermite-Birkhoff interpolation on scattered data on the sphere and other manifolds, Appl. Math. Comput. 318 (2018), 3550.
2. M.R. Asim, G. Mustafa, K. Brodlie, Constrained visualization of 2D positive data using modified quadratic Shepard method, in: V. Skala (Ed.), WSCG 2004: The 12-th International Conference in Central Europe on Computer Graphics, Visualization and Computer Vision, vol. 27, 2004, 469–485.
3. Nonnegative data interpolation by spherical splines
4. Fast and accurate interpolation of large scattered data sets on the sphere
5. Achieving accuracy and efficiency in spherical modelling of real data