@article{GDZPPN002062755,
title = {An extremal problem for harmonic measure.},
journal = {Commentarii mathematici Helvetici},
volume = {52},
year = {1977},
pages = {611-624},
zbl = {0379.30010},
url = {http://dml.mathdoc.fr/item/GDZPPN002062755}
}
Huckemann, Friedrich. An extremal problem for harmonic measure.. Commentarii mathematici Helvetici, Tome 52 (1977) pp. 611-624. http://gdmltest.u-ga.fr/item/GDZPPN002062755/