Cressie N ( 1993) Statistics for Spatial Data, Revised Edition. John Wiley & Sons, New York

Deutsch CV, Journel AG ( 1998) GSLIB Geostatistical Software Library and User's Guide, Second edition. Oxford University Press, New York

Gringarten E, Deutsch CV ( 2001) Teacher's Aide Variogram Interpretation and Modeling. Mathematical Geology 33: 507 534

Isaaks E, Srivastava M ( 1989) An Introduction to Applied Geostatistics, Oxford University Press, New York

Kitanidis P ( 1997) Introduction to Geostatistics Applications in Hydrogeology. Cambridge University Press, New York

Olea RA ( 1984) Systematic Sampling of Spatial Functions. Kansas Series on Spatial Analysis 7, Kansas Geological Survey

Pannatier Y ( 1996) VarioWin Software for Spatial Data Analysis in 2D, Springer-Verlag, Berlin Heidelberg New York

Pardo-Ig zquiza E, Dowd PA ( 1997) AMLE3D: A computer program for the interference of spatial covariance parameters by approximate maximum likelihood estimation. Computers and Geosciences 23: 793 805

Rendu JM, Readdy L ( 1982) Geology and Semivariogram A Critical Relationship. In: Johnson TB , Barns RJ (eds) Application of Computer & Operation Research in the Mineral Industry. 17th Intern. Symp. American Institute of Mining. Metallurgical and Petroleum Engineers, New York, pp. 771 783

Sandwell DT ( 1987) Biharmonic Spline Interpolation of GEOS-3 and SEASAT Altimeter data. Geophysical Research Letters 2: 139 142

The Mathworks ( 2004) Mapping Toolbox User's Guide For the Use with MATLAB . The...