SmartCampus: A user-centric testbed for Internet of Things experimentation. - Michele Nati; Alexander Gluhak; Hamidreza Abangar; William Headley (WPMC, 2013)

Design, Realization, and Evaluation of uDirect-An Approach for Pervasive Observation of User Facing Direction on Mobile Phones. - Seyed Amir Hoseinitabatabaei; Alexander Gluhak; Rahim Tafazolli; William Headley (IEEE Trans. Mob. Comput., 2014)