@article{MAN_1982__259_163616,
     author = {Nicholas D. Alikakos and Ruben Rostamian},
     title = {Grandient {Estimates} for {Degenerate} {Diffusion} {Equations.} {I.}},
     journal = {Mathematische Annalen},
     pages = {53--70},
     year = {1982},
     volume = {259},
     zbl = {0465.35051},
     url = {http://geodesic.mathdoc.fr/item/MAN_1982__259_163616/}
}