The 1953-1984 Bright State of Ry-Tauri - Spectroscopy and Photometry Zaitseva, G. V. ; Kolotilov, E. A. ; Petrov, P. P. ; Tarasov, A. E. ; Shenavrin, V. I. ; Shcherbakov, A. G. Abstract Publication: Soviet Astronomy Letters Pub Date: April 1985 Bibcode: 1985SvAL...11..109Z