Awrejcewicz, Jan, and Dariusz Grzelczyk. “Modelling, Analysis and Control of Nonlinear Discrete and Continuous Mechanical Structures Dedicated for Mechatronic Applications”. Discontinuity, Nonlinearity, and Complexity, vol. 6, no. 4, Dec. 2017, pp. 421-3, https://doi.org/10.5890/DNC.2017.12.001.