found: Optischer Farbmischer, ca. 1980:information sheet (Ludwig Hirschfeld-Mack was born in Frankfurt/Main in 1893; continued his teaching up to the time of his emigration from Germany; after 1942, he worked in Australia where he died in Sydney in 1965)
found: LC in RLIN, 11/30/1993(hdg.: Hirschfeld-Mack, Ludwig; usage: Ludwig Hirschfeld-Mack)
found: Encyclopédie du Bauhaus, c1985:p. 193-194 (Hirschfeld-Mack, Ludwig; né en 1893 à Francfort-sur-le-Main; émigre en Angleterre en 1938, et ensuite en Australie; mort à Sidney en 1965)
found: Bénézit(Hirschfeld-Mack (Ludwig), peintre, graveur, sculpteur lumino-cinétique)
