The 9-Euro-Ticket: Experiences, Impact Mechanisms and Follow-Up
Crossref DOI link: https://doi.org/10.1007/s10273-022-3313-2
Published Online: 2022-11-30
Update policy: https://doi.org/10.1007/springer_crossmark_policy
Krämer, Andreas
Wilger, Gerd
Bongaerts, Robert
Text and Data Mining valid from 2022-11-30
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Article History
First Online: 30 November 2022