1. 
   Sub-Library
   A subset of a combinatorial library physically separated from the rest of the library, generally with one or more fixed building blocks.
   Found op http://www.combichemistry.com/glossary_s.html
   
   
2. 
   Sub-Library
   A subset of a combinatorial library physically separated from the rest of the library, generally with one or more fixed building blocks.
   Found op http://www.combichemistry.com/glossary_s.html
   
   
3. 
   subscription library
   (from the article `library`) Part public, part private, these libraries enjoyed much popularity from the late 17th to the 19th century. Many of them were set up by associations ...
   Found op http://www.britannica.com/eb/a-z/s/178
   
   
4. 
   Subscription library
   A subscription library (also membership library or independent library) is a library that is financed by private funds either from membership fees or endowments. Unlike a public library, access is often restricted to members, but access rights can also given to non-members, such as students. ==Orig...
   Found op http://en.wikipedia.org/wiki/Subscription_library
   
   

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