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机译:
Observ Paris, SYRTE, CNRS, UMR 8630, F-75014 Paris, France;
机译:Optical spectra of candidate international celestial reference frame (ICRF) flat-spectrum radio sources
机译:Optical monitoring of extragalactic sources for linking the ICRF and the future Gaia celestial reference frame: I. Variability of ICRF sources
机译:Proper motion and densification of the International Celestial Reference Frame in the direction of the Galactic bulge
机译:美国宇航局地壳动力学项目的VLBI Celestial参考框架