mp3 and the perceptual coding

[Massimo Grassi <massimo.grassi@xxxxxxxx>]

Dear list members,

I would like to convince to my students that psychophysics can (seldom)
be useful. For this reason, I want to talk about mp3 and perceptual coding.

Is there a book/chapter/paper that you would particularly recommend
about it? There are many things out there, but so far I didn't like much 
any of them. In particular, the characteristics of the perceptual coding 
are always roughly described.

Any suggestion is more than welcome.
Thank you in advance,

m
ps for those in the northern hemisphere: enjoy the spring!