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@article{MM2_1977__21_154467, author = {Hans Wilhelm Alt}, title = {The {Fluid} {Flow} {Through} {Porous} {Media.} {Regularity} of the {Free} {Surface.}}, journal = {Manuscripta mathematica}, pages = {255--272}, publisher = {mathdoc}, volume = {21}, year = {1977}, zbl = {0371.76080}, url = {http://geodesic.mathdoc.fr/item/MM2_1977__21_154467/} }
Hans Wilhelm Alt. The Fluid Flow Through Porous Media. Regularity of the Free Surface.. Manuscripta mathematica, Tome 21 (1977), pp. 255-272. http://geodesic.mathdoc.fr/item/MM2_1977__21_154467/