@book{Lang+2021,
url = {https://doi.org/10.3790/9783428430864},
title = {Systematisierung der Steuervergünstigungen},
title = {Ein Beitrag zur Lehre vom Steuertatbestand},
author = {Joachim Lang},
publisher = {Duncker & Humblot},
address = {},
doi = {doi:10.3790/9783428430864},
isbn = {9783428430864},
year = {1974},
lastchecked = {2021}
}