http://en.wikipedia.org/wiki/Alan_Hacker

http://es.wikipedia.org/wiki/Alan_Hacker

Dic. des interprètes et de l'interprétation musicale au XXe siècle, Robert Laffont, 1995---(Hacker, Alan; n. 30-09-1938, Dorking; clarinette)

8 nocturnes, cop. 1998---carátula del CD (The Music Party, directed by Alan Hacker; clarinet)

WWW Wikipedia, 23-7-2014---(Alan Ray Hacker; b. 30 September 1938; d. 16 April 2012; English clarinetist and professor of the Royal Academy of Music)