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    Hourly Rinex GPS Data Service is Enabled by a Lightweight, Configurable Data Handling System

    Moore, A. / Stowers, D. / Khachikyan, R. et al. | NTRS | 1999

    The instrument on NASA's GRACE Mission: Augmentation of GPS to achieve unprecedented gravity field measurements

    Dunn, C. / Bertiger, W. / Franklin, G. et al. | NTRS | 2002