The link to SchemeUnit is dead
Vladimir Nikishkin 24 Oct 2019 03:58 UTC
Hello
The link number [2] Noel Welsh: SchemeUnit. February 2003.
http://schematics.sourceforge.net/schemeunit.html
in the "References" section is dead.
A possible replacement might be: (the last version for Racket)
https://pkgs.racket-lang.org/package/schemeunit OR
https://sourceforge.net/projects/schematics/files/OldFiles/