Martin Wojtczyk Giorgio Panin Claus Lenz Thorsten Röder Suraj Nair Erwin Roth Alois Knoll Rüdiger Heidemann Klaus Joeris Chun Zhang Mark Burnett Tom Monica A vision based human robot interface for robotic walkthroughs in a biotech laboratory. 309-310 2009 HRI http://doi.acm.org/10.1145/1514095.1514190 conf/hri/2009 db/conf/hri/hri2009.html#WojtczykPLRNRKHJZBM09