000 00281nmm a2200097Ia 4500
008 220120s9999||||xx |||||||||||||||||und||
020 _a0-07-118996-3
100 _aHillebrand, Friedhelm
_98145
245 0 _aGSM and UMTS :the creation of global mobile communication
260 _bBoston
999 _c139698
_d139698