# Version 1.0 - Created 2011-01-13 - FZ, TIB, Germany

namespace a = "http://relaxng.org/ns/compatibility/annotations/1.0"
namespace rng = "http://relaxng.org/ns/structure/1.0"


## 
##			The type of the RelatedIdentifier.
##		
relatedIdentifierType =
  "ARK"
  | "DOI"
  | "EAN13"
  | "EISSN"
  | "Handle"
  | "ISBN"
  | "ISSN"
  | "ISTC"
  | "LISSN"
  | "LSID"
  | "PURL"
  | "UPC"
  | "URL"
  | "URN"