"West End Musical 'Wicked" Launches with Record-Breaking Sales – Box Office Takes £100,000 in First Hour Total Advance Sales Now £1.7 Million". wickedthemusical.co.uk.
West End Musical «Wicked» Launches with Record-Breaking Sales – Box Office Takes £100,000 in First Hour Total Advance Sales Now £1.7 Million, wickedthemusical.co.uk (7 марта 2006).