@article{Höpfner+2023+93+94, url = {https://doi.org/10.3790/hpb.71.1-2.93}, title = {Ilko-Sascha Kowalczuk: Walter Ulbricht. Der deutsche Kommunist (1893 – 1945).}, title = {}, author = {Hans Paul Höpfner}, pages = {93--94}, volume = {71}, number = {1–2}, journal = {Das Historisch-Politische Buch (HPB)}, doi = {doi:10.3790/hpb.71.1-2.93}, year = {2023}, lastchecked = {2023-01-01} }