N. Walker, B. Fröhlich, and P. Eberhard. 9th Vienna International Conference on Mathematical Modelling (MATHMOD), February 21-23, 2018, Vienna, Austria,, (2018)
J. Friedrich, S. Scheifele, A. Verl, and A. Lechler. Procedia \CIRP\, (2015)9th \CIRP\ Conference on Intelligent Computation in Manufacturing Engineering - \CIRP\ \ICME\ '14.