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Published online by Cambridge University Press: 03 August 2017
Five stellar binary systems of RS CVn and Algol type have been observed on June 12, 1986, with the EVN (Effelsberg, Jodrell, Medicina, Onsala, Westerbork), and two US antennas (Green Bank, Haystack). Observations were carried out at 5 GHz, with 13 min of integration and with MARK III mode B.