@article{GDZPPN002046792,
title = {Zur Theorie massiver Knoten},
journal = {Beitr\"age zur Algebra und Geometrie = Contributions to algebra and geometry},
volume = {5},
year = {1976},
pages = {61-74},
zbl = {0348.50006},
url = {http://dml.mathdoc.fr/item/GDZPPN002046792}
}
KRÖTENHEERDT, O.; VEIT, S. Zur Theorie massiver Knoten. Beiträge zur Algebra und Geometrie = Contributions to algebra and geometry, Tome 5 (1976) pp. 61-74. http://gdmltest.u-ga.fr/item/GDZPPN002046792/