1. Adegoke O. S. Ako B. D. Enu E. I. Afonja A. A. Ajayi T. R. Emofurieta W. O. ... Soremekun O. A. (1 980). Geotechnical investigations of the Ondo State bituminous sands - Volume I: Geology and reserve s estimate. Unpublished. Geological Consultancy Unit Department of Geology University of Ife (now Obafemi Awolowo University) Nigeria 257.
2. Accounting for parameter uncertainty in reservoir uncertainty assessmen t: The conditional finite-domain approach;Babak O.;Natural Resources Research,2009
3. Estimation of non-ergodic variograms and their sampling variance by design-based sampling strategies;Brus D. J.;Mathematical Geology,1994
4. Derakhshan SH Deutsch CV Leuangthong O. Methodology for Choosing the Optimal Tolerance Parameters for Variogram Calculation. Centre for Computational Geostatistics Annual Report 9 2007a.
5. Derakhshan H. and Leuangthong O. (2006). Impact of data spacing on variogram uncertainty. CCG Annual Report 8-117 Centre for Computational Geostatistics University of Alberta 1 - 19