Heine, Gunnar GSM networks : protocols, terminology, and implementation / Gunnar Heine - Boston, Mass: Artech House, ©1999 - xi, 416 pages : illustrations ; 24 cm. Includes index. ISBN: 9780890064719 (hbk) Subjects--Topical Terms: Global system for mobile Dewey Class. No.: 621.38 / HEI