Feinstein, John (8 June 1986). "Graf, 16, Can Handle Pressure". Los Angeles Times. Archived from the original on 16 October 2015. Retrieved 18 September 2014.
Wolff, Alexander (20 September 1993). "Serves and Follies". Sports Illustrated. p. 26. Archived from the original on 14 March 2017. Retrieved 25 January 2019.
"Wunderbar deutsch". Der Spiegel. 27 July 1987. Archived from the original on 16 October 2015. Retrieved 19 September 2014.
Von Geyer, Matthias; Winterfeldt, Jörg (23 November 1998). "Ein deutsches Comeback". Der Spiegel. Archived from the original on 24 September 2014. Retrieved 19 September 2014.
Kaplan, Daniel (9 August 2004). "Agassi still in Canon's picture". SportsBusiness Journal. Archived from the original on 10 September 2014. Retrieved 9 September 2014.
Feinstein, John (8 June 1986). "Graf, 16, Can Handle Pressure". Los Angeles Times. Archived from the original on 16 October 2015. Retrieved 18 September 2014.
Von Geyer, Matthias; Winterfeldt, Jörg (23 November 1998). "Ein deutsches Comeback". Der Spiegel. Archived from the original on 24 September 2014. Retrieved 19 September 2014.
Kaplan, Daniel (9 August 2004). "Agassi still in Canon's picture". SportsBusiness Journal. Archived from the original on 10 September 2014. Retrieved 9 September 2014.
Wolff, Alexander (20 September 1993). "Serves and Follies". Sports Illustrated. p. 26. Archived from the original on 14 March 2017. Retrieved 25 January 2019.