H. Werthner:
"e-Tourism: An Informatics Perspective";
in: "Handbook of e-Tourism",
Z. Xiang, M. Fuchs, U. Gretzel, W. Höpken (ed.);
Springer, Cham,
2021,
ISBN: 978-3-030-05324-6,
1
- 20.
"Official" electronic version of the publication (accessed through its Digital Object Identifier - DOI)