http://www.rfc-editor.org/rfc/rfc1691.txt
RFC 1691: The Document Architecture for the Cornell Digital Library, W. Turner1994-08-01T23:00:00-00:00This memo defines an architecture for the storage and retrieval of the digital representations for books, journals, photographic images, etc., which are collected in a large organized digital library. This memo provides information for the Internet community. This memo does not specify an Internet standard of any kind.