"Versioned As" . " When the metadata linked to by this LSID is liable to change the LSID authority may choose to make an older version of the metadata available via another LSID. For some clients\n\t\t\tretrieving the version of the data current at a particular time (rather than the current metadata) may be important. By storing the value of the versionedAs LSID that is supplied with the\n\t\t\tcurrent metadata they can be sure that they will always be able to refer to a particular version of the metadata. It is recommended that the DublinCore term isVersionOf is used to point\n\t\t\tfrom the versioned metadata to the principle LSID." . . .