Versioning of Learning Objects

@inproceedings{Brooks2003VersioningOL,
  title={Versioning of Learning Objects},
  author={Christopher A. Brooks and John Cooke and Julita Vassileva},
  booktitle={ICALT},
  year={2003}
}
This paper outlines the issues associated with creating derivative works based on learning objects in a general manner, and discusses the support that exists within current metadata specifications.