@article{EJDE_2015__2015__a52,
     author = {Ochoa,  Pablo},
     title = {A comparison principle for singular parabolic equations in the {Heisenberg} group},
     journal = {Electronic journal of differential equations},
     year = {2015},
     volume = {2015},
     zbl = {1342.35425},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EJDE_2015__2015__a52/}
}