Many thanks,
David Galvin,
Notre Dame Dept.of Mathematics
I don't have a specific recommendation, but you might want to check out
the list of references in the following paper by Koppel, Schler, and
Argamon ("Computational methods in authorship attribution"):
http://u.cs.biu.ac.il/~koppel/papers/authorship-JASIST-final.pdf
--
Tim Chow tchow-at-alum-dot-mit-dot-edu
The range of our projectiles---even ... the artillery---however great, will
never exceed four of those miles of which as many thousand separate us from
the center of the earth. ---Galileo, Dialogues Concerning Two New Sciences