http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
GSM, Global System for Mobile Communication. English
Jörg Eberspächer, Hans-Jörg Vögel and Christian Bettstetter.
Prevised edition: GSM switching, services, and protocol. 1999.
Electronic reproduction. Boulder, Colo. : NetLibrary, 2001. Available via World Wide Web. Access may be limited to NetLibrary affiliated libraries.
Includes bibliographical references (pages [297]-300) and index.