[2021-10-13]. (原始内容存档于2020-08-24) (英语). Wintour, Patrick. Academics warn of ‘chillingeffect’ of Hong Kong security law. The Guardian. 12 October 2020 [2022-12-27]
OCILLA U.S. Copyright Office Summary of the DMCA (页面存档备份,存于互联网档案馆) ChillingEffect's FAQs (页面存档备份,存于互联网档案馆), about DMCA Safe Harbor Provisions U.S. Copyright