See Jared B. Cawley,Friend of the Court: How the WTO Justifies the Acceptance of the Amicus Curiae Brief from Non-Governmental Organizations,Penn State International Law Review, Vol,23,p.47, 2004.

• 美国联邦最高法院于1939年首次颁布了“法庭之友”书状的提交规则，并先后进行了3次修订.