@article {64234,
	title = {New Sensorless Speed Control of IPMSM Based on Backstepping Observer},
	journal = {J. Automation \& Systems EngineeringJ. Automation \& Systems Engineering},
	volume = {11 N{\textdegree}3},
	year = {2017},
	month = {2017},
	pages = {230-243},
	author = {Nadji, S. and Benaicha, S.}
}
