@article{GDZPPN002432056, title = {C?-Regularity for the Porous Medium Equation.}, journal = {Mathematische Zeitschrift}, volume = {192}, year = {1986}, pages = {217-224}, zbl = {0597.35107}, url = {http://dml.mathdoc.fr/item/GDZPPN002432056} }
Höllig, K.; Kreiss, H.-O. C?-Regularity for the Porous Medium Equation.. Mathematische Zeitschrift, Tome 192 (1986) pp. 217-224. http://gdmltest.u-ga.fr/item/GDZPPN002432056/