@conference {skarpetis2013robust,
	title = {Robust PID controller for electro{\textemdash}Hydraulic actuators},
	booktitle = {2013 IEEE 18th Conference on Emerging Technologies \& Factory Automation (ETFA)},
	year = {2013},
	pages = {1{\textendash}5},
	publisher = {IEEE},
	organization = {IEEE},
	author = {Skarpetis, Michael G and Fotis N. Koumboulis}
}
