@misc{indiciae27d9d712eaef, title = {Comparison of ITRF2000 with a GPS defined reference frame}, author = {Heflin, M. B. and Argus, D. and Jefferson, D. and Webb, F. and Zumberge, J.}, year = {2001}, url = {https://ntrs.nasa.gov/citations/20060031878}, note = {Source identifier: 20060031878} }