@article {tzamtzi1999explicit,
	title = {Explicit formulas of feedback stabilizers for a class of triangular systems with uncontrollable linearization},
	journal = {Systems \& control letters},
	volume = {38},
	number = {2},
	year = {1999},
	pages = {115{\textendash}126},
	publisher = {Elsevier},
	author = {Tzamtzi, Maria and Tsinias, John}
}
