OpenURL
OpenURL - way to encode citation for a resource
OpenURL = BaseURL + Description
BaseURL = http://sfx.bath.ac.uk/sfxmenu
Description = Origin + ObjectDescription
ObjectDescription is either a global identifier (e.g. A DOI) or a description (a citation) or a local identifier of some kind
http://sfx.bath.ac.uk/sfxmenu?genre=book&isbn=1234-5678