@inproceedings{TUW-140128, author = {Kaukal, M and H{\"o}pken, W. and Werthner, Hannes}, title = {An Approach to Enable Interoperability in Electronic Tourism Markets}, booktitle = {Proceedings of the ECIS Conference 2000}, year = {2000}, note = {Vortrag: ECIS Conference 2000, Vienna; 2000-00-00} }