@book{Johne+2023, url = {https://doi.org/10.3790/9783896739988}, title = {Basiswissen E-Mail-Marketing}, title = {Kunden binden, Absatz steigern, Kosten senken}, author = {Thomas Johne}, publisher = {Verlag Wissenschaft & Praxis}, address = {}, doi = {doi:10.3790/9783896739988}, isbn = {9783896739988}, year = {2006}, lastchecked = {2023} }