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Published online by Cambridge University Press: 12 April 2016
Three sets of spectrophotometric standards are presented: eight bright B and A stars of 00 - 265, fourteen B - A stars of 3m-4m from the catalogue of 238 secondary spectrophotometric standards and 24 A0-G0 stars of 7m-8m. For all of these stars UBV photometry was produced and brightness variations exceeding O01 were not found.