@conference {skarpetis2007robust,
	title = {Robust control techniques for hydraulic actuators},
	booktitle = {15th Mediterranean Conference on Control \& Automation, Athens, Greece},
	year = {2007},
	publisher = {IEEE},
	organization = {IEEE},
	author = {Skarpetis, MG and Koumboulis, FN and Tzamtzi, MP}
}
