Medieval Galician-Portuguese Lyric: Satirical Cantigas!

[scottishlass]

I have to write a paper about the spectrum of the medieval galician-portuguese satirical cantigas. I am going to talk about the extremes: the cantigas that aim to poke fun, through to those that are very obscene and explicit. I have found quite a few articles to use, but I need some more.

Can anyone tell me the names of any articles or books that may be particularly relevant bibliographical material?

Cheers