• SRU: Search/Retrieval via URL -- SRU, CQL and ZeeRex (Standards, Library of Congress)
  SRU is a standard XML-focused search protocol for Internet search queries, utilizing CQL (Contextual Query Language), a standard syntax for representing queries. Note about version: Version 1.2 is the current SRU version. These specifications are for both versions, 1.1 and 1.2, but are oriented to version 1.2 with version 1.1 exceptions annotated. For a full version 1.1 specification see Version 1.1 Archive. Also see: What's new in Version 1.2?
  SRU is a standard XML-focused search protocol for Internet search queries, utilizing CQL (Contextual Query Language), a standard syntax for representing queries. Note about version: Version 1.2 is the current SRU version. These specifications are for both versions, 1.1 and 1.2, but are oriented to version 1.2 with version 1.1 exceptions annotated. For a full version 1.1 specifica
  congress cql library retrieval search sru standards url zeerex
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