Sperchneider, Volker Logic : a foundation for computer science / V. Sperscheider & G. Antoniou - Wokingham, Eng. : Addison-Wesley, 1991 - 495 p. : ill. ; 24 cm. - International computer science series . references p. 485-490 ISBN: 0201565145 RM145.93 LCCN: 91-2885 Subjects--Topical Terms: Computer scienceLogic, Symbolic and mathematical