@article{PPN236008730+dmdlog158,
title = {Bestimmung der Normalelemente},
booktitle = {Theoretische Astronomie Bd. 7},
series = {GDML\_Books},
year = {1906},
pages = {559},
url = {http://dml.mathdoc.fr/item/PPN236008730+dmdlog158}
}
(éd.). Bestimmung der Normalelemente, dans Theoretische Astronomie Bd. 7, GDML_Books, (1906), p. 559. http://gdmltest.u-ga.fr/item/PPN236008730+dmdlog158/