@article{GDZPPN002291436,
title = {Theorie der Netze.},
journal = {Mathematische Annalen},
volume = {152},
year = {1963},
pages = {361-418},
zbl = {0112.27603},
url = {http://dml.mathdoc.fr/item/GDZPPN002291436}
}
BERGMANN, G. Theorie der Netze.. Mathematische Annalen, Tome 152 (1963) pp. 361-418. http://gdmltest.u-ga.fr/item/GDZPPN002291436/