Pricing GPRS Services / Katrina Bond, Julie Robson; ed. Andrea Smith
Meeting the challenges of GPRS billing / Katrina Bond, Emily Turnbull; ed. Rachael Beale, Ian Faulkner
Seamless communication : worldwide: Annual report & Accounts 2001 / Inmarsat Ventures plc
Worldwide approvals99 : London, 22nd-24th November 1999 / org. IBC