00343nam a2200085Ia 4500008004100000245009800041260000900139300008600148650002300234180130s9999    xx            000 0 und d  cLehr, William; McKnight, Lee W.aWireless internet access for data communication: 3G vs. wifi  c2015  aBook title: Elements of data communication--Acession number C20540; pages 107-128  aDATA COMMUNICATION