[Haskell] implicit parameters and the paper "prepose.pdf"

In a recent message to this list (msg15410) Oleg referenced a paper comparing implicit parameters and implicit configurations with url http://www.eecs.harvard.edu/~ccshan/prepose/prepose.pdf . I'd like to read this, (and examine the companion literate haskell file prepose.lhs), but www.eecs.harvard.edu rejects my connection. Nor can I find it anywhere else. Is this paper still available somewhere, or is it possible for someone to send me a copy? Best John Velman velman_at_cox.net