The Racket docs reference an “Exception system proposal”, but the link is broken. https://docs.racket-lang.org/reference/doc-bibliography.html?q=exception#%28cite._.Friedman95%29.

Anybody know where I can find the referenced material?

Someone updated the docs recently to point to http://web.archive.org\|web.archive.org: https://web.archive.org/web/20161012054505/http://www.cs.indiana.edu/scheme-repository/doc.proposals.exceptions.html

awesome, thank you!