@article {52,
	title = {Interconnections of Hybrid Systems: Some Challenges and Recent Results},
	journal = {Journal of Nonlinear Systems and Applications},
	volume = {2},
	number = {1-2},
	year = {2011},
	pages = {111{\textendash}121},
	keywords = {hybrid systems},
	doi = {http://jnsaonline.watsci.org/abstract_pdf/2011v2/v2n1-pdf/13.pdf},
	url = {https://hybrid.soe.ucsc.edu/files/preprints/52.pdf},
	author = {R. G. Sanfelice}
}
