00386nam a2200145Ia 450000100060000000800410000602000150004704000130006208200200007510000180009524500530011326000560016630000110022254600070023334696140418s9999    xx            000 0 und d  a0028642872  cPK-LaUMT  a 004.678bHEL-W  aHeltzel, Paul  aWireless computing and networkingcHeltzel, Paul  aIndianapolis,USA:bPearson Education Company,c2002  a286 p.  aEN