Yan, B.S. and Ge, J.L. (2003) New advances of modern reservoir and fluid flow in porous media. Journal of Southwest Petroleum Institute, 25(1), 29-32, (in Chi-nese).
Odeh, A.S and Babu, D.K. (1998) Comprising of solu-tions for the nonlinear and linearized diffusion equations. SPE Reservoir Engineering, 3(4), 1202-1206.
Bai, M.Q. and Roegiers, J.C. (1994) A nonlinear dual porosity model. Appl Math Moclellin, 18(9), 602-610.
Wang, Y. and Dusseault, M.B. (1991) The effect of quad-ratic gradient terms on the borehole solution in poroelas-tic media. Water Resource Research, 27(12), 3215-3223.
Chakrabarty, C., Farouq, A.S.M. and Tortike, W.S. (1993) Analytical solutions for radial pressure distribution in-cluding the effects of the quadratic gradient term. Water Resource Research, 29(4), 1171-1177.
Braeuning, S., Jelmert, T.A. and Sven, A.V. (1998) The effect of the quadratic gradient term on variable-rate well-tests, Journal of Petroleum Science and Engineering, 21(2), 203-222.
Tong, D.K. (2003) The fluid mechanics of nonlinear flow in porous media. Beijing: Petroleum Industry Press in Chinese, (in Chinese).
Tong, D.K., Zhang, Q.H. and Wang, R.H. (2005) Exact solution and its behavior characteristic of the nonlinear dual-porosity model. Applied Mathematic and Mechanics, 26(10), 1161-1167, (in Chinese).
William, E.B., James, M. and Peden, K.F.N. (1980) The analysis of spherical flow with wellbore storage. SPE 9294.
Charles, A.K. and William, A.A. (1982) Application of linear spherical flow analysis techniques to field prob-lems-case studies. SPE 11088.
Mark, A. and Proett, W.C.C. (1998) New exact spherical flow solution with storage and skin for early-time inter-pretation with applications to wireline formation and early-evaluation drillstem testing. SPE 49140.
Joseph, J.A. and Koederitz, L.F. (1985) Unsready-state spherical flow with storage and skin. SPEJ, 25(6), 804-822.
Stehfest H. (1970) Numerical inversion of Laplace transform algorithm 368, Communication of the ACM, 13(1), 47-49.