Notice and take down

SD許可證被認為是copycenter（中間版權），介乎標準的copyright與GPL的copyleft之間。"Take it down to the copy center and make as many copies as you want"[1]。可以說，GPL強迫後續版本必須一樣是自由

（原始内容存档于2014-11-25）.  Shute, Joe. Cyberbullying suicides: What will it take to have Ask.fm shut down?. The Daily Telegraph. [2013-08-06]. （原始内容存档于2013-08-06）.  Joshua

[2015-04-04]. （原始内容存档于2021-01-12）.  IIPM notice. [2015-07-02]. （原始内容存档于2021-01-11）.  M Saraswathy. IIPM to shut down all campuses October onwards. Business

Over And Above Anyone. LiveLaw. 2024-10-14 [2024-11-04] （英语）.  Thapliyal, Nupur. 'Prima Facie Contemptuous': Delhi High Court Orders Take Down Of Wikipedia

RAW and Burn Notice lead weekly cable viewing. TV by the Numbers. 2009-01-27 [2010-07-30]. （原始内容存档于2009-02-24）.  Seidman, Robert. The Closer, Monk and Burn