User contributions
- 03:46, 3 April 2013 (diff | hist) . . (+248) . . Talk:1193: Externalities
- 17:02, 2 April 2013 (diff | hist) . . (+290) . . Talk:1193: Externalities
- 04:42, 2 April 2013 (diff | hist) . . (+173) . . Talk:1193: Externalities
- 03:38, 2 April 2013 (diff | hist) . . (+378) . . Talk:1193: Externalities
- 23:37, 1 April 2013 (diff | hist) . . (+183) . . Talk:1193: Externalities
- 23:16, 1 April 2013 (diff | hist) . . (+268) . . Talk:1193: Externalities