@article{TUW-185275, author = {Kemmetm{\"u}ller, Wolfgang and Kugi, Andreas}, title = {Immersion and invariance-based impedance control for electrohydraulic systems}, journal = {International Journal of Robust and Nonlinear Control}, year = {2010}, volume = {20}, number = {7}, pages = {725--744}, doi = {10.1002/rnc.1462} }