@book{Hahn+2019,
url = {https://doi.org/10.3790/9783428431946},
title = {Die öffentlich-rechtliche Alterssicherung der verkammerten freien Berufe},
title = {},
author = {Dierk Hahn},
publisher = {Duncker & Humblot},
address = {},
doi = {doi:10.3790/9783428431946},
isbn = {9783428431946},
year = {1974},
lastchecked = {2019}
}