http://lists.racket-lang.org/users/archive/2005-August/009483.html
http://lists.racket-lang.org/users/archive/2005-November/010350.html
http://lists.racket-lang.org/users/archive/2006-June/013819.html
http://lists.racket-lang.org/users/archive/2006-August/014439.html
http://lists.racket-lang.org/users/archive/2006-December/015607.html
http://lists.racket-lang.org/users/archive/2007-February/016393.html
http://lists.racket-lang.org/users/archive/2008-January/022312.html
http://lists.racket-lang.org/users/archive/2008-March/023852.html
https://mercure.iro.umontreal.ca/pipermail/gambit-list/2008-June/002394.html
http://lists.racket-lang.org/users/archive/2008-September/027474.html
http://lists.racket-lang.org/users/archive/2009-January/029884.html
http://lists.racket-lang.org/users/archive/2009-May/033221.html
http://lists.racket-lang.org/dev/archive/2009-October/001381.html
http://lists.racket-lang.org/users/archive/2011-March/044693.html
http://lists.racket-lang.org/users/archive/2012-October/054471.html
http://lists.racket-lang.org/users/archive/2013-January/055864.html
http://lists.racket-lang.org/users/archive/2013-May/057836.html
http://lists.racket-lang.org/users/archive/2014-February/061431.html
http://bugs.racket-lang.org/query/?cmd=view&audit-trail&database=default&pr=14635
http://calculist.blogspot.com/2009/01/fexprs-in-scheme.html
http://lists.r6rs.org/pipermail/r6rs-discuss/2009-September/005470.html
http://lists.racket-lang.org/users/archive/2010-August/041266.html