@book{Zimmermann+2019,
url = {https://doi.org/10.3790/9783428445080},
title = {Marketing im Handwerk},
title = {},
author = {Thomas Zimmermann},
publisher = {Duncker & Humblot},
address = {},
doi = {doi:10.3790/9783428445080},
isbn = {9783428445080},
year = {1979},
lastchecked = {2019}
}