@book{94001,
	author = {Hoel, Paul Gerhard, and Port, Sidney C.},
	title = {Introduction to stochastic processes},
	publisher = {Houghton Mifflin},
	year = {[1972]},
	series = {The Houghton Mifflin series in statistics},
	address = {Boston},
	note = {Companion volume to the authors' Introduction to probability theory and Introduction to statistical theory.}
}