Potter, Keith. 2001. Entries on 20th-century British composers and other subjects: 'Minimalism'; 'Bedford, David', 'Bryars, Gavin', 'Fitkin, Graham', 'Martland, Steve', 'Montague Stephen', 'Skempton, Howard'. In: Stanley Sadie and John Tyrell, eds. The New Grove Dictionary of Music and Musicians. London: Macmillan. [Book Section]