http://www.inf.puc-rio.br/~roberto/docs/MCC15-04.pdf

http://www.cs.indiana.edu/~dyb/pubs/call1cc.pdf
    Representing Control in the Presence of One-Shot Continuations




http://www.madore.org/~david/computers/callcc.html

http://www.scheme.com/tspl3/further.html#./further:h3

http://matt.might.net/articles/programming-with-continuations--exceptions-backtracking-search-threads-generators-coroutines/

http://www.ps.uni-saarland.de/~duchier/python/continuations.html

http://intertwingly.net/blog/2005/04/13/Continuations-for-Curmudgeons

https://c2.com/cgi/wiki?ContinuationExplanation
https://c2.com/cgi/wiki?CallWithCurrentContinuation





http://eigenclass.org/hiki/My+mind+and+continuations,+callcc+seen+graphically