J. Friedrich, H. Hartmann, A. Verl, und A. Lechler. Proceedings of the 24th International Conference on Flexible Automation & Intelligent Manufacturing, University of Texas at San Antonio, (2014)
J. Friedrich, M. Gebele, A. Lechler, und A. Verl. International Journal of Mechanical, Aerospace, Induastrial, Mechatronic and Manufacturing Engineering, 9 (10):
1981-1986(2015)
J. Friedrich, A. Maurer, A. Lechler, und A. Verl. Proceedings of the The International Conference Management of Technology – Step to Sustainable Production (MOTSP 2016), Porec, Croatia, (2016)