1.)Leading and Managing in Silicon Valley Marilson Campos, Leo Dagum, Sam Hahn, Thomas Hempel, Ed Komo, Byron S. Lee, Mike Moody, Jacob A. Taylor ExcellentLeader, 2009 [Erste Auflage, gebunden]
3.)Usability of Speech Dialog Systems Thomas Hempel (Herausgeber) Springer Berlin Heidelberg, 2010 [Softcover reprint of hardcover 1st ed. 2008, Taschenbuch]