| 1. | 
          
           Scheme  
        Revised(4) Report on the Algorithmic Language Scheme The report gives a defining description of the programming language Scheme. Scheme is a statically scoped and properly tail-recursive dialect of the Lisp programming language invented by Guy Lewis Steele Jr. and Gerald Jay Sussman. It was designed to have an exceptionally clear and simple semantics and few different ways to form expressions. A wide variety of programming paradigms, including imperative, functional, and message passing styles, find convenient expression in Scheme.
      URL: http://www.cs.cmu.edu/afs/cs.cmu.edu/project/ai-repository/ai/html/r4rs/r4rs_toc.html
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      | 2. | 
          
           Scheme introduction  
       Numbers are one of the most primitive types of expression Scheme can understand. There is no distinction made between doubles, floats, or integers, as there is in other languages such as C. 
      URL: http://www.accad.ohio-state.edu/~mlewis/Class/scheme.html
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      | 3. | 
          
           Kawa: Compiling Scheme to Java  
       Kawa is a set of Java classes useful for implementing dynamic languages, such as those in      the Lisp family. 
      URL: http://sources.redhat.com/kawa/papers/KawaLisp98-html/t1.html
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      | 4. | 
          
           Kawa, the Java-based Scheme system  
       Kawa is a Scheme environment, written in Java, and that compiles Scheme code into Java byte-codes. 
      URL: http://www.cygnus.com/~bothner/kawa.html
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      | 5. | 
          
           Berkeley Scheme [windows version] 
       The homepage for Scheme at Berkeley
      URL: http://www-inst.eecs.berkeley.edu/~scheme
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      | 6. | 
          
           PLT Scheme  
       PLT Scheme is an umbrella name for a
                                                family of implementations of the Scheme
                                                programming language.
      URL: http://www.plt-scheme.org/
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      | 7. | 
          
           MzScheme  
       MzScheme is an implementation of the
                                                Scheme programming language for
                                                Windows (95 and up), MacOS, and Unix.
                                                The name is pronounced "miz scheme",
                                                as in "Ms. Scheme".
      URL: http://www.plt-scheme.org/software/mzscheme/
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      | 8. | 
          
           PLT Scheme software  
       List of Scheme interpreters and add-ons.
      URL: http://www.plt-scheme.org/software/
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