J. Friedrich, C. Hinze, A. Lechler, and A. Verl. 2016 IEEE International Conference on Advanced Intelligent Mechatronics (AIM), Institute of Electrical and Electronics Engineers (IEEE), (July 2016)
J. Friedrich, and A. Verl. Proceedings of the International Conference on Advanced Manufacturing Engineering and Technologies NEWTECH 2013, page 117-126. (2013)
J. Friedrich, M. Gebele, A. Lechler, and A. Verl. International Journal of Mechanical, Aerospace, Induastrial, Mechatronic and Manufacturing Engineering, 9 (10):
1981-1986(2015)