00587pamaa2200181 4500 0000036950 20130117090000.0 0470863706 005.8 SCH TK5105.59 SCH 2003 SCHAFER Security in fixed and wirless networks : an introduction to securing data communications Gunter Schafer. Sussex: Wiley, 2003. xiii, 382p.: ill.; 25cm. BCN BNCCU / BSECU / BITCU / BMCCU / BCSCU Computer networks -- Security measurers Wireless communications system