GSM :
Eberspacher, Jorg
GSM : switching ,services and protocols / Jorg Eberspacher, Hans-Jorg Vogel and Christian Bettstetter - 2nd ed. - Chichester : John Wiley, c2001. - xiv,332 p. : ill. ; 24 cm.
047149903x
Global system for mobile communications
TK5103.483 / .E2413 2001
621.3822 / E16g
GSM : switching ,services and protocols / Jorg Eberspacher, Hans-Jorg Vogel and Christian Bettstetter - 2nd ed. - Chichester : John Wiley, c2001. - xiv,332 p. : ill. ; 24 cm.
047149903x
Global system for mobile communications
TK5103.483 / .E2413 2001
621.3822 / E16g