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           | Description | 
           Z-scheme | 
          
          
           | Date | 
           16 April 2005 | 
          
          
           | Source | 
            http://en.wikipedia.org/wiki/Image:Z-scheme.png | 
          
          
           | Author | 
            w:User:Bensaccount | 
          
         
         
        
         
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          Permission is granted to copy, distribute and/or modify this document under the terms of the  GNU Free Documentation License, Version 1.2 or any later version published by the  Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled  GNU Free Documentation License.  http://www.gnu.org/copyleft/fdl.htmlGFDLGNU Free Documentation Licensetruetrue 
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