- Roberto Sierra - http://www.schirmer.com/composers/sierra/bio.html
Biography and reviews from Schirmer.
- Roberto Sierra - http://newalbion.com/artists/sierrar/
Biography, discography, collections from New Albion.
- Roberto Sierra - http://www.robertosierra.com/
Official site. Includes biography, list of works, music samples, recent news, and further information and links.
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