@article{GDZPPN00205566X,
title = {St\"utzfunktion und Radius II.},
journal = {Commentarii mathematici Helvetici},
volume = {25},
year = {1951},
pages = {11-25},
language = {de},
url = {http://dml.mathdoc.fr/item/GDZPPN00205566X}
}
Scherrer, W. Stützfunktion und Radius II.. Commentarii mathematici Helvetici, Tome 25 (1951) pp. 11-25. http://gdmltest.u-ga.fr/item/GDZPPN00205566X/