http://www.bartleby.com/65/st/Straus-O.html Article with operetta highlights from the Columbia Encyclopedia, Sixth Edition, 2001. http://www.hnh.com/composer/strausso.htm Brief biography and caricature with summary of stage works and recommended recording. http://stevenestrella.com/composers/composerfiles/strauss1954.html Biographical data, recommended CDs, books and sheet music, bibliography, and link to biographical essay from Dr. Estrella's Incredibly Abridged Dictionary of Composers.