@conference {95,
	title = {Robust Distributed State Observers with Performance Guarantees and Optimized Communication Graph},
	booktitle = {Proceedings of the 2014 American Control Conference},
	series = {NULL},
	year = {2014},
	pages = {1090-1095},
	keywords = {observers},
	author = {Y. Li and R. G. Sanfelice}
}
