@inproceedings{GrossmannBregullaBanerjeeetal.2014, author = {Großmann, Daniel and Bregulla, Markus and Banerjee, Suprateek and Schulz, Dirk and Braun, Roland}, title = {OPC UA server aggregation — The foundation for an internet of portals}, booktitle = {ETFA'2014: 19th IEEE International Conference on Emerging Technologies and Factory Automation}, publisher = {IEEE}, address = {Piscataway}, isbn = {978-1-4799-4846-8}, doi = {https://doi.org/10.1109/ETFA.2014.7005354}, year = {2014}, language = {en} }