@book{Helmich+2025, url = {https://doi.org/10.3790/9783428591336}, title = {Die öffentliche Hand als Bieter im Vergabeverfahren}, title = {}, author = {Stefan Helmich}, publisher = {Duncker & Humblot}, address = {}, doi = {doi:10.3790/9783428591336}, isbn = {9783428591336}, year = {2025}, lastchecked = {2025} }