OPUS : Online Positioning User Service [email protected].
VECTOR Vermont Enhanced CORS and Transmission Of Real-time Corrections Network Status and Current Applications Daniel J. Martin, National Geodetic Survey.
National CORS: Products & Services
Daniel J. Martin, National Geodetic Survey Vermont Society of Land Surveyors December 19, 2008
CDOT CORS/OPUS Team P. Fromhertz Colorado State Geodetic Advisor National Geodetic Survey (NGS) January 13, 2011.
