Abstract
International Reference Stars (IRS) and Special Stars programs are very important programs of astrometry. The total number of stars in these programs is about 45 000. The time has come to begin organization of meridian observations of IRS stars and Special Programs stars at observatories in both hemispheres of the world.
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Zverev, M.S., Polozhentsev, D.D. International reference stars and special stars programs; Organization of their meridian observations. Astrophys Space Sci 177, 21–22 (1991). https://doi.org/10.1007/BF00643647
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DOI: https://doi.org/10.1007/BF00643647