Dagmar de Corval Rybner Barclay (9 September 1890 - 22 July 1965) was a Swiss-German composer, pianist, and teacher who worked and corresponded with Sergei Rachmaninoff. She published and performed under the name Dagmar Rybner.[1][2][3][4][5]
^Cohen, Aaron I. (1987). International encyclopedia of women composers. 2: Sai - Zyb, Appendices (2. ed., revised and enl ed.). New York: Books & Music. p. 607. ISBN978-0-9617485-1-7.