@conference {cescit18wheelchair,
	title = {Observer-Based Assistive Control Design Under Time-Varying Sampling for Power-Assisted Wheelchairs},
	booktitle = {Proceedings IFAC Conference on Embedded Systems, Computational Intelligence and Telematics in Control (CESCIT-18)},
	year = {2018},
	month = {6{\textendash}8 June 2018},
	pages = {151{\textendash}156},
	address = {Faro, Portugal},
	author = {Guoxi Feng and Thierry-Marie Guerra and Sami Mohammad and Lucian Busoniu}
}
