Meermann, Björn https://orcid.org/0000-0002-8636-0765
Nischwitz, Volker https://orcid.org/0000-0002-9261-3124
Funding for this research was provided by:
Bundesministerium für Verkehr und Digitale Infrastruktur
PEER REVIEW METHOD
: Single-blind
PUBLICATION HISTORY
: Received 8 February 2018; Accepted 19 July 2018; Accepted Manuscript published 19 July 2018; Advance Article published 26 July 2018; Version of Record published 30 August 2018