Choral Public Domain Library

Does anyone know of any site that could have some RISM numbers for manuscripts of french chansons?
I've found some for motets, that I'll post here later.

Greetings,
Luís Henriques

Here it is:

http://www.binghamton.edu/faculty/linco ... -motet.cgi

I found a searchable list that shows the music titles and manuscript source, but not the RISM number:

http://www.rism.org.uk/search/quick?que ... td_title_d

Search for "chanson" and voilà!

Thanks for the help.
I'll check it a.s.a.p.