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2. Bjornberg, Alf (1990) ‘Sounding the Mainstream: an Analysis of the Songs Performed in the Swedish Eurovision Song Contest Semi-Finals 1959–1983’, in K. Roe and U. Carlsson (eds), Popular Music Research. Goteborg: Nordicom-Sweden.
3. Bronson, Fred (1985) The Billboard Book of Number One Hits. New York: American Photographic Books.
4. Burns, Gary (1987) ‘A Typology of “Hooks” in Popular Records’, Popular Music, 6: 1–20.
5. Clayson, Alan (1985) Call up the Groups: the Golden Age of British Beat, 1962–1967. London: Blandford.