@article{MM2_1982__37_154840,
     author = {Michael Gr\"uter and Kjell-O. Widman},
     title = {The {Green} {Function} for {Uniformly} {Elliptic} {Equations.}},
     journal = {Manuscripta mathematica},
     pages = {303--342},
     publisher = {mathdoc},
     volume = {37},
     year = {1982},
     zbl = {0485.35031},
     url = {http://geodesic.mathdoc.fr/item/MM2_1982__37_154840/}
}