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2. M.R. TODD — P.M. O'DELL — C.J. HIRASAKI — Methods for increased accuracy in numerical reservoir simulation — Soc. Pet. Eng. J. (Dec. 1972) — P 515, 529
3. J.L. YANOSIK — T.A. Mc CRACKEN — A nine-point finite difference reservoir simulation for realistic prediction of unfavorable nobility ratio displacements — SPE 5734 — Los Angeles (Fev. 1976)
4. N. ALBRIGHT — P. CONCUS — W. PROSKUROWSKI — Numerical solution of the multi-dimensional Buckley leverett equation by a sampling method — SPE 7681 — Denver (Fev. 1980)
5. J. DOUGLAS Jr — T. DUPONT — H.H. RACHFORD — The application of variational methods to water flooding problems — The Journal of Canadian Petroleum Technology (Sep. 1969) — P 79, 85