Christian Deters Emanuele Lindo Secco Helge A. Wurdemann Hak-Keung Lam Lakmal D. Seneviratne Kaspar Althoefer Model-free fuzzy tightening control for bolt/nut joint connections of wind turbine hubs. 270-276 2013 ICRA https://doi.org/10.1109/ICRA.2013.6630587 conf/icra/2013 db/conf/icra/icra2013.html#DetersSWLSA13