J. Schlechtendahl, P. Eberspächer, P. Schraml, A. Verl, and E. Abele. Research and innovation in manufacturing : key enabling technologies for the factories of the future - proceedings of the 48th CIRP Conference on Manufacturing Systems, 41, page 783-788. Amsterdam, Elsevier, (2015)
D. Coupek, A. Gülec, A. Lechler, and A. Verl. 9th CIRP Conference on Intelligent Computation in Manufacturing Engineering - CIRP ICME '14, 33, page 550-555. Amsterdam, Elsevier, (2015)