@book{Behrend+2019,
url = {https://doi.org/10.3790/9783428439331},
title = {Untersuchungen zur Stufenbaulehre Adolf Merkls und Hans Kelsens},
title = {},
author = {Jürgen Behrend},
publisher = {Duncker & Humblot},
address = {},
doi = {doi:10.3790/9783428439331},
isbn = {9783428439331},
year = {1977},
lastchecked = {2019}
}