TY  - BOOK
AU  - Tisal, Joachim
TI  - GSM Cellular radio telephony
SN  - 0471968269
U1  - 621.38456 TIS 
PY  - 1997///, repr. 2000
CY  - Chichester
PB  - John Wiley
KW  - Global system for mobile communications
ER  -