Hinrichsen's musical year book, 1949-1950, surrogate t.p. (Max Hinrichsen)
LC manual auth. cd. (hdg: Hinrichsen, Max, 1901-)
Bayerisches Musiker Lexikon Online, viewed June 15, 2018 (Hinrichsen, Max; born July 6, 1901, Leipzig, died December 17, 1965, London; music publisher)