@book{Pfaff+2020,
url = {https://doi.org/10.3790/9783428431465},
title = {Kommentar zum Steuergeheimnis},
title = {},
author = {Paul Pfaff},
publisher = {Duncker & Humblot},
address = {},
doi = {doi:10.3790/9783428431465},
isbn = {9783428431465},
year = {1974},
lastchecked = {2020}
}