E. CHARALAMPOUS, S. GUILLAUME, P. PSIMOULIS, M. SPYRIDONAKOS, R. KLIS, B. BÜRKI, M. ROTHACHER, E. CHATZI, R. LUCHSINGER, G. FELTRIN and C. GALLIOT, 2013. Measuring sub-mm structure displacements using QDaedalus: a digital clip-on measuring system developed for Total Stations In: 2nd Joint International Symposium on Deformation Monitoring, Nottingham, UK, 9-11 September, 2013.