http://www.krenek.com/ English and German with information about the Institute, news, the Ernst Krenek Prize, biography, works, discography, and bibliography. http://www.ErnstKrenek.org/ Official site. Centennial brocure in PDF, biography and chronology, compositions by date, title, genera, and publisher, link to Krenek Newsletter. http://www.britannica.com/eb/article?eu=47308 Britannica.com entry with musical development and compositional influences. http://encarta.msn.com/index/conciseindex/66/06684000.htm?z=1&pg=2&br=1 Concise Encarta Encyclopedia article showing the musical evolution in his compositions. http://stevenestrella.com/composers/composerfiles/krenek1991.html Biographical data, recommended CDs, books and sheet music, bibliography, and link to biographical essay from Dr. Estrella's Incredibly Abridged Dictionary of Composers. http://orpheus.ucsd.edu/music/KrenekNewsletter/ University of California, San Diego publication with archives of previous issues and links.