Databases for Radio/Optical Objects: Radio Stars, Extragalactic Radio Sources, and Intermediate Reference Stars Tel'Nyuk-Adamchuk, V. ; Babenko, J. ; Kumkova, I. ; Pasechnyk, S. ; Vertypolokh, O. Abstract Publication: IAU Commission on Instruments Pub Date: 1994 Bibcode: 1994IAUIn...5...50T