@article{Hillmann+2022+445+446, url = {https://doi.org/10.3790/hpb.70.1-4.445}, title = {Oswald Walter: Reichsadler und Brieftaube. Private Postdienstleister in Mannheim und Ludwigshafen 1886 – 1900.}, title = {}, author = {Jörg Hillmann}, pages = {445--446}, volume = {70}, number = {1–4}, journal = {Das Historisch-Politische Buch (HPB)}, doi = {doi:10.3790/hpb.70.1-4.445}, year = {2022}, lastchecked = {2022-01-01} }