00347nam a2200121Ia 4500008004100000020001800041100001800059245008000077260001600157260000900173300000900182650003400191221231s9999    xx            000 0 und d  a81-203-0868-9  aHalsall, Fred 0aMultimedia Communications : Applications, Networks, Protocols and Standards  bPearson Edu  c2007  a1056  aElectronics and Communication