@{,
author = {https://digital.katalog.queersearch.org/s/katalog/item/47355,},
year = {1934},
title = {Fritz von Holstein : die graue Eminenz},
publisher = {https://digital.katalog.queersearch.org/s/katalog/item/48513},
booktitle = {Preussische Geschichte in Einzeldarstellungen}
}