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- [3] The Department of Defense Certification Demonstration Project - An updated overview METROLOGY - AT THE THRESHOLD OF THE CENTURY ARE WE READY?, 1999, : 389 - 389
- [4] Setting the Standard: The GEOINT Professional Certification Program for the Department of Defense PHOTOGRAMMETRIC ENGINEERING AND REMOTE SENSING, 2017, 83 (05): : 333 - 334