Hi Michael,this link (and then clicking on the "Download full-text PDF" button) seems to work without registration:
Am 29.03.2017 um 19:37 schrieb Michael Litchard:
I'm looking for a freely available version of the below paper. Google
Scholar points me to 7 versions, all of which are behind a paywall.
Stefan Kahrs, "Red-black trees with types", Journal of functional
programming, 11(04), pp 425-432, July 2001
https://www.researchgate.net/publication/259413698_Red-black _trees_with_types
Hope that helps,
Leo