This English language edition first published 2009
© 2009 John Wiley & Sons Ltd
Originally published in the German language by B.G. Teubner GmbH as "Jörg Eberspächer/Hans-Jörg Vögel/Christian Bettstetter: GSM Global System for Mobile Communication. 3. Auflage (3rd edition)."
© B.G. Teubner GmbH, Stuttgart/Leipzig/Wisbaden 2001
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