@article {tzamtzi1999small,
	title = {A small gain theorem for locally input to state stable interconnected systems},
	journal = {Journal of the Franklin Institute},
	volume = {336},
	number = {6},
	year = {1999},
	pages = {893{\textendash}901},
	publisher = {Elsevier},
	author = {Tzamtzi, MP and Tzafestas, SG}
}
