@article{10_4064_cm_60_61_1_157_194,
     author = {Cristian E. Guti\'errez and Richard L. Wheeden},
     title = {Mean value and {Harnack} inequalities for degenerate parabolic equations},
     journal = {Colloquium Mathematicum},
     pages = {157--194},
     publisher = {mathdoc},
     volume = {60},
     number = {1},
     year = {1990},
     doi = {10.4064/cm-60-61-1-157-194},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/cm-60-61-1-157-194/}
}