*Clean [#zbd284a5] -[http://wiki.clean.cs.ru.nl/Clean Clean] -[http://web.archive.org/web/20130728162826/http://sky.zero.ad.jp/~zaa54437/programming/clean/ 純粋関数型言語Concurrent Clean [Internet Archive]] -[http://web.archive.org/web/20120307172613/http://www.geocities.jp/lethevert/clean/index.html Concurrent Clean紹介 - lethevertの純粋関数型言語Concurrent Clean覚え書き [Internet Archive]] -http://www.zephyr.dti.ne.jp/~nishis/learning/fpl/ -http://hp.vector.co.jp/authors/VA028375/miscellany/clean.html -http://web.archive.org/web/20090210121306/http://shootout.alioth.debian.org/gp4/clean.php -[http://d.hatena.ne.jp/lethevert/20051015/p4 Concurrent Clean : プログラム終了時のPAUSEをどうするか？] -[http://d.hatena.ne.jp/lethevert/20051016/p1 Concurrent Clean : press any key to exit] -http://mailman.science.ru.nl/pipermail/clean-list/ --http://mailman.science.ru.nl/pipermail/clean-list/2003.txt --http://mailman.science.ru.nl/pipermail/clean-list/2003/002480.html --http://mailman.science.ru.nl/pipermail/clean-list/2003/002481.html