@article{2242,
author = {Tillmann, Heinz-G\"unther},
title = {Dualit\"at in der potentialtheorie},
journal = {Portugaliae mathematica},
volume = {13},
year = {1954},
pages = {55-86},
zbl = {0056.33403},
mrnumber = {0067362},
language = {de},
url = {http://dml.mathdoc.fr/item/2242}
}
Tillmann, Heinz-Günther. Dualität in der potentialtheorie. Portugaliae mathematica, Tome 13 (1954) pp. 55-86. http://gdmltest.u-ga.fr/item/2242/