00816nas 22002773a 450 99620896090331620240413025452.0(CKB)991042728147112(CONSER)--2002211164(EXLCZ)9999104272814711220020522a20029999 --- aengtxtrdacontentcrdamediacrrdacarrier2.5G-3G covering 2G, 2.5G & 3G developmentsBoston, Mass. Information Gatekeepers2002-1 online resourcePrint version: 2.5G-3G : (DLC)--2002211164 (OCoLC)49846078 1540-0719 384Information Gatekeepers, Inc.JOURNAL996208960903316exl_impl conversion2.5G-3G2366472UNISA