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)
A. Csiszar, P. Sommer, and A. Lechler. 2015 IEEE International Conference on Industrial Technology (ICIT 2015), page 192-197. Piscataway, NJ, IEEE, (2015)