1) Yeh, G. T.(1992).:“Class notes, CE597C, Computational subsurface hydrology Part II”, Spring Semester 1992, The Pennsylvania State University Park, PA.
2) Owczarek, J. A (1964). Fundamentals of gas dynamics. International 神野健二編著: 地下水中の物質輸送数値解析, 九州大学出版会, pp.8-10, 2001.
5) Karube, D., S, Kato, M. Honda, and K, Kawai: A constitutive model for unsaturated soil evaluating effects of soil moisture distribution, Proc. 2nd International Conference on Unsaturated Soils, pp.485-490, 1998.