Abstract
This article describes the Nationwide Differential Global Positioning System (NDGPS) service being developed in the United States and the enormous benefits to federal agencies, state governments, and the general public. © 1999 John Wiley & Sons, Inc.
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Allen III, L. United States' Nationwide Differential Global Positioning System. GPS Solutions 2, 1–6 (1999). https://doi.org/10.1007/PL00012763
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DOI: https://doi.org/10.1007/PL00012763