R. Nielsen, “Cain, T. (1990) Keynote P/us,Cambridge: CUP. Cripps, C. (1988) Popular Music in the 20th Centur, Cambridge: CUP”, PB, vol. 1, no. 2, pp. 103–104, Sep. 2015, doi: 10.1558/prbt.v1i2.28594.