S. Al-Rawi, E., Y. Al-Bayati, A., & A. Manaa, S. (2008). A kind of Upwind Finite Element Approximations for Compressible Flow of Contamination from Nuclear Waste in Porous Media. AL-Rafidain Journal of Computer Sciences and Mathematics, 5(2), 19–37. https://doi.org/10.33899/csmj.2008.163968