1. Behrndt, Synne. “Dance, Dramaturgy, and Dramaturgical Thinking.” Contemporary Theater Review 20. 2 (2010): 185–196.
2. Caspersen, Dana. Improvised text recorded in rehearsal, transcribed by author, and reproduced in I Don’t Believe in Outer Space. William Forsythe and The Forsythe Company. Premiere Frankfurt am Main, Germany, 20 Nov. 2008.
3. Duchamp, Marcel. “The Creative Act.” Transcribed recording from Session on the Creative Act, Convention of the American Federation of Arts in Houston TX, April 1957. Salt Seller: The Writings of Marcel Duchamp. Oxford, UK: Oxford UP, 1973: 138–140.
4. Forsythe, William. “Next Wave Festival. Iconic Artist Talk: William Forsythe.” Brooklyn Academy of Music, New York. 29 October 2011. Lecture.
5. Forsythe, William. Interviewed by Roslyn Sulcas. “Interview: Paris 1998.” Ballet Frankfurt’s websit. Web. 3 June 2001.