Observations of the total solar eclipse of June 30, 1973 according to the Soviet-French cooperation programme. Vsekhsvyatskij, S. K. ; Dzyubenko, N. I. ; Nesmyanovich, A. T. ; Popov, O. S. ; Rubo, G. A. ; Koutchmy, S. ; Bareau, C. ; Begot, J. ; Fagot, J. Abstract Publication: Astronomicheskij Tsirkulyar Pub Date: 1973 Bibcode: 1973ATsir.800....1V