@article{GDZPPN002280418,
title = {The internal problems of two dimensional potential theory},
journal = {Mathematische Annalen},
volume = {117},
year = {1940},
pages = {31-38},
zbl = {65.0422.02},
url = {http://dml.mathdoc.fr/item/GDZPPN002280418}
}
Morris, R.M. The internal problems of two dimensional potential theory. Mathematische Annalen, Tome 117 (1940) pp. 31-38. http://gdmltest.u-ga.fr/item/GDZPPN002280418/