@article{JEMS_2016_18_2_a4,
     author = {Benny Avelin and Ugo Gianazza and Sandro Salsa},
     title = {Boundary estimates for certain degenerate and singular parabolic equations},
     journal = {Journal of the European Mathematical Society},
     pages = {381--424},
     publisher = {mathdoc},
     volume = {18},
     number = {2},
     year = {2016},
     doi = {10.4171/jems/593},
     url = {http://geodesic.mathdoc.fr/articles/10.4171/jems/593/}
}