Application of Hierarchical Matrices to Linear Inverse Problems in GeostatisticsA.K. Saibaba, S. Ambikasaran, J. Yue Li, P.K. Kitanidis and E.F. DarveOil Gas Sci. Technol. – Rev. IFP Energies nouvelles, 67 5 (2012) 857-875DOI: https://doi.org/10.2516/ogst/2012064