@article{10_1090_S1079_6762_06_00166_1,
     author = {DiBenedetto, Emmanuele and Gianazza, Ugo and Vespri, Vincenzo},
     title = {Intrinsic {Harnack} estimates for nonnegative local solutions of degenerate parabolic equations},
     journal = {Electronic research announcements of the American Mathematical Society},
     pages = {95--99},
     publisher = {mathdoc},
     volume = {12},
     year = {2006},
     doi = {10.1090/S1079-6762-06-00166-1},
     url = {http://geodesic.mathdoc.fr/articles/10.1090/S1079-6762-06-00166-1/}
}