@book{2020,
url = {https://doi.org/10.3790/9783428441440},
title = {Geschichte und Zukunft},
title = {Fünf Vorträge},
author = {},
publisher = {Duncker & Humblot},
address = {},
doi = {doi:10.3790/9783428441440},
isbn = {9783428441440},
year = {1978},
lastchecked = {2020}
}