Biblio
Natural neighbor extrapolation using ghost points.
Computer Aided-Design. 41, 350-365.
Extrapolation.pdf (2.22 MB)
(2009). 
Discrete harmonic functions from local coordinates.
(Martin, R., Sabin M., & Winkler J., Ed.).Mathematics of Surfaces XII.
HarmonicFunc.pdf (835.96 KB)
(2007). 