00313nam a2200109Ia 4500008004100000020001700041041000800058082002000066100001500086245007000101260003200171211209s2008 xx 000 0 und d a978049326240 aeng a621.384 ZHA/CHE aZHANG, YAN aMOBILE WIMAX: TOWARD BROADBAND WIRELESS METROPLITAN AREA NETWORK  bAUERBACH PUBLICATIONSc2008