On 03/01/15, Damon A. Getsman pondered and said...   
       
    DA>     I really think that this (and its second part, linked to at the end)   
    DA> are very useful for this discussion.  It even throws in a little bit of   
    DA> humor, but is chock full of useful information, too:   
      
   I'm still reading this and re-reading parts of it. It's very good. Thanks for   
   sharing.   
      
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