LCCN 42040018: His The Hungarian revolution, 1919 (hdg.: Schmitt, Heinrich, 1894-; usage: Charles Henry Schmitt)

Biog. resource center (Contemp. authors), May 12, 2009 (Heinrich Schmitt; b. Mar. 9, 1894, Geneva, Switzerland; d. Feb. 11, 1976, Munich, Germany; best known for his numerous detective novels written under the pseudonym Frank Arnau: The Art of the Faker; Panik vor Torschluss; Lexicon der Philatelie; and Das Ratsel der Monstranz

DDB Web OPAC, May 12, 2009 (Arnau, Frank, 1894-1976; variants: Schmitt, Heinrich Karl [real name]; Schmitt, Heinrich)