@article{GDZPPN002281430,
title = {Das Dirichletsche Prinzip},
journal = {Mathematische Annalen},
volume = {120},
year = {1947},
pages = {36-42},
language = {en},
url = {http://dml.mathdoc.fr/item/GDZPPN002281430}
}
Ahlfors, L.V. Das Dirichletsche Prinzip. Mathematische Annalen, Tome 120 (1947) pp. 36-42. http://gdmltest.u-ga.fr/item/GDZPPN002281430/