Sangster, Rodney B. Roman Jakobson and beyond : language as a system of signs , the quest for the ultimate invariants in language / Rodney B. Sangster - Berlin : Mouton, 1982 - 207 p. : 23 cm. - Janua linguarum. series maior ; 109 . Includes bibliographical references ISBN: 9027930406 Subjects--Personal Names: Jakobson, Roman Subjects--Topical Terms: LinguisticsRussian language--Grammar