%0 Journal Article %A Cristian E. GutiƩrrez %A Richard L. Wheeden %T Mean value and Harnack inequalities for degenerate parabolic equations %J Colloquium Mathematicum %D 1990 %P 157-194 %V 60 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/cm-60-61-1-157-194/ %R 10.4064/cm-60-61-1-157-194 %G en %F 10_4064_cm_60_61_1_157_194