Elbert, Ralf ; Gleser, Michael (2019):
Digital forwarders : a market oriented taxonomy.
In: Lecture Notes in Logistics, In: Logistics management : strategies and instruments for digitalizing and decarbonizing supply chains - Proceedings of the German Academic Association for Business Research, Halle, 2019, pp. 19-31, Cham, Springer, ISBN 978-3-030-29821-0,
DOI: 10.1007/978-3-030-29821-0,
[Book Section]

Gleser, Michael (2013):
Policy-basierter Vergleich von Zertifizierungspraktiken innerhalb der Web-PKI.
Darmstadt, Technische Universität, [Bachelor Thesis]