In the biography of Johann Strauss II, published in 1940, which continues to be of great importance to Strauss research in musicological terms, every single Jew is meticulously identified and research findings on the proven pathologies of Johann Strauss are dismissed by Ernst Décsey (and which are undoubtedly based on the statements of Strauss' third wife Adele) as "autocratic interpretation" and "journalistic eloquence", which did not appear in Strauss's life picture, "[...] until after the World War the Jew Decsey set out to underpin it in terms of local and contemporary history [...]".