@article{CMH_1945__18_138884,
     author = {Henrik L. Selberg},
     title = {\"Uber eine {Ungleichung} der {Potentialtheorie.}},
     journal = {Commentarii mathematici Helvetici},
     pages = {327--330},
     publisher = {mathdoc},
     volume = {18},
     year = {1945},
     zbl = {0060.22613},
     url = {http://geodesic.mathdoc.fr/item/CMH_1945__18_138884/}
}