Hershey, John E. Data transportation and protection / John E. Hershey and K. K. Rao Yarlagadda - New York : Plenum Press, 1986 - 490 p. : ill. ; 24 cm. - Applications of communications theory . Includes index ISBN: 0306422573 LCCN: 86-15065 Subjects--Topical Terms: Data transmission system--Security measures