"Klassisches Verkaufen ist out"
Crossref DOI link: https://doi.org/10.1007/s35141-019-0022-6
Published Online: 2019-03-12
Published Print: 2019-03
Update policy: https://doi.org/10.1007/springer_crossmark_policy
Text and Data Mining valid from 2019-03-01
Version of Record valid from 2019-03-01
Article History
First Online: 12 March 2019
