@article{MAN_1937__114_159937,
     author = {M. Nicolesco},
     title = {\"Uber eine {Mittelwertseigenschaft} der {Potentialfunktionen}},
     journal = {Mathematische Annalen},
     pages = {614--615},
     publisher = {mathdoc},
     volume = {114},
     year = {1937},
     zbl = {0016.40202},
     url = {http://geodesic.mathdoc.fr/item/MAN_1937__114_159937/}
}