TY - CHAP U1 - Konferenzveröffentlichung A1 - Al-Akkad, Amro A1 - Raffelsberger, Christian A1 - Boden, Alexander A1 - Ramirez, Leonardo A1 - Zimmermann, Andreas T1 - Tweeting 'When Online is Off'? Opportunistically Creating Mobile Ad-hoc Networks in Response to Disrupted Infrastructure T2 - Proceedings of the 11th International Conference on Information Systems for Crisis Response and Management, University Park, Pennsylvania, USA, May 18-21, 2014 Y1 - 2014 SP - 662 EP - 671 S1 - 10 ER -