help on _The Fold_

hi all

on behalf of a scholar friend, does anyone have any suggested secondary 
sources on or for Deleuze's "The Fold" (I know that Serres has written 
some interesting stuff that sits alongside Deleuze but other things are 
sought...)

thanks for any help
adrian miles


lecturer in cinema studies and new media, rmit, melbourne
                    web: http://cs.art.rmit.edu.au/adrian
   HyperText Project: http://cs.art.rmit.edu.au/hypertext
  Chris Marker WWW Site: http://cs.art.rmit.edu.au/marker