Seán Campbell & Gerry Smyth, Beautiful Day: Forty Years of Irish Rock (2005). Journal of the Society for Musicology in Ireland, [S. l.], v. 2, p. 54–56, 2007. DOI: 10.35561/JSMI02065. Disponível em: https://www.jsmi.musicologyireland.ie/index.php/journal/article/view/14. Acesso em: 15 dec. 2025.