| [1] | William Clinger, http://www.ccs.neu.edu/home/will/Temp/uwesc.sch.
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| [2] | Daniel P. Friedman and Christopher T. Haynes, ``Constraining Control'', in 1985 ACM Symposium on Principles of Programming Languages, pp. 245-254.
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| [3] | Richard Kelsey and William Clinger (eds.), Revised^5 Report on the Algorithmic Language Scheme (``R5RS''), 1998.
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| [4] | Kent Pitman, UNWIND-PROTECT vs Continuations.
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