@book{Helmert+2021,
url = {https://doi.org/10.3790/9783428487523},
title = {Der Staatsbegriff im petrinischen Rußland},
title = {},
author = {Gundula Helmert},
publisher = {Duncker & Humblot},
address = {},
doi = {doi:10.3790/9783428487523},
isbn = {9783428487523},
year = {1996},
lastchecked = {2021}
}