I am looking for a text which
1) Explains how to deduce statements about perverse sheaves on complex geometry from analogous statements in positive characteristic. For example the last chapter "De F a C" of BBD: Faisceaux pervers, Astérisque 100 would be ideal.
2) Is available online, this point is crucial.
So the perfect answer to this question would be a way to obtain an electronic copy of Astérisque 100 though I suspect it is not available online.