Leonardo Riccardi David Naso Biagio Turchiano Hartmut Janocha Adaptive approximation-based control of hysteretic unconventional actuators. 958-963 2011 CDC/ECC https://doi.org/10.1109/CDC.2011.6161300 conf/cdc/2011 db/conf/cdc/cdc2011.html#RiccardiNTJ11