S. Eugster. 86th Annual Meeting of the International Association of Applied Mathematics and Mechanics (GAMM), 15, 1, page 289-290. Weinheim, Wiley-VCH, (2015)
S. Peter, A. Grundler, P. Reuss, L. Gaul, and R. Leine. Proceedings of the 33rd IMAC, a Conference and Exposition on Structural Dynamics, 2015, 1 : Nonlinear dynamics, page 209-217. Cham, Springer, (2015)