@book{Ludendorff2018,
editor = {Ludendorff, Erich},
year = {2018},
language = {ger},
copyright = {https://creativecommons.org/public-domain/cc0/},
title = {Urkunden der Obersten Heeresleitung},
url = "http://dx.doi.org/10.17169/refubium-357",
}