http://www.annusfidei.va/content/novaevangelizatio/it/segreteria/FidesPerDoctrinam.html

Alternative link :

http://www.vatican.va/holy_father/benedict_xvi/motu_proprio/documents/hf_ben-xvi_motu-proprio_20130116_fides-per-doctrinam_it.html

The full document of Pope Benedict XVI’s latest Motu Proprio, Fides per Doctrinam (Faith through Doctrine) released on 16 January 2013. It’s in Italian, so if you have difficulty, I believe the translator in chrome works quite well in translating this document to English.

http://en.wikipedia.org/wiki/Motu_proprio

Motu proprio is a kind of document that is signed by the Pope and is a document issued by the Pope’s own initiative, and may deal with matter pertaining to certain parts of the faith or matters pertaining to the Church as a whole.

http://www.catholicculture.org/news/headlines/index.cfm?storyid=16902

A short explanation on the changes brought about by this Motu Proprio, mainly concerning transfer in the duties of some offices of the Roman Curia.