Classical Music Archives: Stockhausen: Biography from the Concise Oxford Dictionary of Music.
Karlheinz Stockhausen: Official site of the Stockhausen Foundation. Chronology of life and work, interview, awards, CD ordering information, and samples of compositions. Includes the Stockhausen-Verlag. Some material in PDF.
Karlheinz Stockhausen: Classical Music Pages biographical essay with study of his influences from The Grove Concise Dictionary of Music.
Karlheinz Stockhausen: Filmography at IMDb with musical and on-screen credits.
Karlheinz Stockhausen: Musica Classica Classical Music Dictionary entry with life, important works, and illustrations.
Karlheinz Stockhausen's New Morphology of Musical Time: Paper by Christopher K. Koenigsberg.
Stockhausen, Karlheinz (1928 - ): Brief biography with summary of his instrumental and vocal music and comments on the numbering of his works.
Stockhausen, Karlheinz (1928 - Living), Germany: Biographical data, recommended CDs, books and sheet music, bibliography, and links to biographical essays from Dr. Estrella's Incredibly Abridged Dictionary of Composers.