Nilsen, T., Staresletten, An Analytical Study on Natural Convection in Isotropic and Anisotropic Porous Channels, Trans. ASME: J. Heat Transfer, 112, 396 (1990).
 Nild, D., Bejan A. “Convective in Porous Media”, Springer, New York, (1992).
 Ingham, D.B., Pop, I., “Transport Phenomena in Prous Media”, Pergamon, Oxford (1998).
 Ni, J., Beckerman, C., Natural Convection in a Vertical Enclosure Filled with Anisotropic Porous Media, Trans. ASME: J. Heat Transfer, 113, 1033 (1991).
 Trew, M., Mckibbin, R., Convective in Anisotropic Inclined Porous Layer, Trans P., Porous Media,17, 271 (1994).
 Degan, G., Vassenr, P., Natural Convection in a Vertical Stot Filled with an Anisotropic Porous Medium with Oblique Principal Axes, Heat Transfer, 30 A, 397 (1996).
 Bera, P., Eswaran, P., Singh, Numerical Study of Heat and Mass Transfer in an Anisotropic Prous Enclosure Due to Constant Heating and Cooling, Heat Transfer, 34 A, 887 (1998).
 Watson, A., The Effect of the Inversion Temp. on theConvection of Water in an Enclosed Rectangular Cavity, J. Mech, Appl. Math., 25(u), 423 (1992).
 Iskava, Isikava T., Hirata, S., Numerical Simulation of Natural Convection with Density Inversion in a Square Cavity, Heat Transfer, 37 A, 395 (2000).
 Chang, W. J., Yang, D. F., Transient Natural Convection of Water Near its Density in a Rectangular Cavity Filled with Porous Medium, Heat Transfer, 28 A, 619 (1995).
 Goyeau, D. Gobin, D., Heat Transfer by Thermo-solutal Natural Canvection in a Vertical Porous Cavity, Journal of Heat Transfer, 120, (1998).
 Tervisan, E., Bejan A., Natural Convection in a Vertical Slot Filled with an Anisotropic Porous Medium, Int. J. Heat Fluid Flow, 18, 334 (1997).