@book{121653,
	author = {Segal, Irving Ezra. and Mackey, George W.},
	title = {Mathematical problems of relativistic physics /},
	publisher = {American Mathematical Society,},
	year = {1963.},
	series = {Lectures in applied mathematics, v.2},
	address = {Providence, R.I. :},
	note = {"Proceedings of the Summer Seminar, Boulder, Colorado, 1960"}
}