^Gammon، Clive (10 يونيو 1985). "A Day Of Horror And Shame". Sports Illustrated. مؤرشف من الأصل في 2012-11-04. اطلع عليه بتاريخ 2013-06-16. The malady has afflicted Great Britain for more than 20 years, though it probably received wide attention in the sporting world for the first time in 1972 when, in what became known as the Battle of Barcelona, fans of the Glasgow Rangers rioted, causing their team to be suspended from European competition for a year.