• Smart twin cities via urban operating systemSoe, Ralf-MartinICEGOV '17 : proceedings of the 10th International Conference on Theory and Practice of Electronic Governance : New Delhi AA, India, March 7-9, 20172017 / p. 391-400 : ill https://doi.org/10.1145/3047273.3047322 https://www.scopus.com/sourceid/11600154611 https://www.scopus.com/record/display.uri?eid=2-s2.0-85020877377&origin=inward&txGid=1b3de26e332a4498df6b6b2498b5eecf