students from citing any encyclopedia in academic work, preferring primary sources ; 176 some specifically prohibit Wikipedia citations. The policy has sometimes proved controversial: in 2008, Wikipedia rejected an online petition against the inclusion of images of Muhammad in the English edition of its Muhammad article, citing this policy. 233 In July 2013, after extensive beta testing, a wysiwyg (What You See Is What You Get) extension, VisualEditor, was opened to public use. A b "Even taller towers planned for long-dormant Blackfriars Road site". "The amorality of Web.0". Retrieved "Bishops Place Building 2". "Henderson 40 Leadenhall Street Gotham City 1 Mace wins 400m 40 Leadenhall 'Gotham City' project". Retrieved January 28, 2007. On September 28, 2007, Italian politician Franco Grillini raised a parliamentary question with the minister of cultural resources and activities about the necessity of freedom of panorama. These personalized tokens of appreciation reveal a wide range of valued work extending far beyond simple editing to include social support, administrative actions, and types of articulation work. 350 351 They used PageRank "followed by the number of appearances in the 24 different language editions of Wikipedia (descending order) and the century in which they were founded (ascending order)." A 2017 MIT study suggests that words used.