@misc{indiciae89e5765e6ad3,
  title = {Scientific Digital Libraries, Interoperability, and Ontologies},
  author = {Hughes, J. Steven and Crichton, Daniel J. and Mattmann, Chris A.},
  year = {2009},
  url = {https://ntrs.nasa.gov/citations/20150011934},
  note = {Source identifier: 20150011934}
}