The following has been added to the Zotero Group for Ancient World Open Bibliographies and the Ancient World Open Bibliographies Wiki.
Latin Language
The History of Latin Pronunciation
http://www.music.princeton.edu/~jeffery/pronunc.html
Peter Jeffery, Music, Princeton
No last update date; latest works are 1992.
This short bibliography is focused on the pronunciation of latin in both classical forms and in later church music. It includes monographs and articles in English.