We would like to thank Jijun Wang and Mike Lewis for discussing simulator details. Many thanks to Christian Taubitz and Marvin Drogies for helping modeling the Osnabrück office environment. The marching cubes algorithm was implemented by Thomas Wiemann. Furthermore, we thank Kai Pervölz and Hartmut Surmann for preceeding joint research and Oliver Wulf and Bernardo Wagner for the work in the Deutschland1 team.