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  year =         2001,
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}

@TechReport{Coquand93,
  author = 	 {Thierry Coquand and Daniel Fridlender},
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  month =	 {November}
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@InProceedings{Nogin-ENTCS-2000,
  author = 	 {Aleksey Nogin},
  title = 	 {Writing constructive proofs yielding efficient extracted programs},
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  editor =	 {Didier Galmiche},
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