@article{TUW-301011, author = {Marko, Lukas and Saxinger, Martin and Steinb{\"o}ck, Andreas and Kugi, Andreas}, title = {Cancellation of unknown multi-harmonic disturbances in multivariable flexible mechanical structures}, journal = {Automatica}, year = {2022}, volume = {137}, pages = {1--13}, doi = {10.1016/j.automatica.2021.110123} }