D. Knoell, M. Atzmueller, C. Rieder, и K. Scherer. Proc. GWEM 2017, co-located with 9th Conference Professional Knowledge Management (WM 2017), Karlsruhe, Germany, KIT, ((In Press) 2017)
C. Sacarea, R. Meza, и M. Cimpoi. Automation, Quality and Testing, Robotics, 2008. AQTR 2008. IEEE International Conference on, 3, стр. 234 -238. (мая 2008)