I have uploaded here a version of my 1993 sketches paper with an addendum listing a few relevant papers written since then.  I have not kept up with the field well enough to contemplate a complete revision of the 1993 paper.

I recommend that more people update their papers this way.  I did it by making a new PDF file with the added references and then using Acrobat to combine it with the old paper into one file.  That way I didn’t have to re-TeX the old paper, which is a good thing, since I don’t know where some of the .sty files are.

Send to Kindle