Kirsten Sadler Secretary Contact: Email: ksadler@nulluni-bonn.de Tel: +49 – 228 – 73 – 27 13 Office: Nussallee 15, 1. OG, room 1.009 Address: University of Bonn Photogrammetry, IGG Nussallee 15 53115 Bonn Office Hours Mon – Wed: 8.00 – 15.00