@article{RSMUP_1985__73__179_0,
     author = {Chiarenza, Filippo and Serapioni, Raul},
     title = {A remark on a {Harnack} inequality for degenerate parabolic equations},
     journal = {Rendiconti del Seminario Matematico della Universit\`a di Padova},
     pages = {179--190},
     publisher = {Seminario Matematico of the University of Padua},
     volume = {73},
     year = {1985},
     mrnumber = {799906},
     zbl = {0588.35013},
     language = {en},
     url = {http://archive.numdam.org/item/RSMUP_1985__73__179_0/}
}