@article {45,
	title = {On singular perturbations due to fast actuators in hybrid control systems},
	journal = {Automatica},
	volume = {47},
	number = {4},
	year = {2011},
	month = {April},
	pages = {692{\textendash}701},
	keywords = {hybrid systems},
	doi = {http://www.sciencedirect.com/science/article/pii/S0005109811000707},
	url = {https://hybrid.soe.ucsc.edu/files/preprints/45.pdf},
	author = {R. G. Sanfelice and A. R. Teel}
}
