@misc{indiciae0094f7e4b7d8,
  title = {Global polar geospatial information service retrieval based on search engine and ontology reasoning},
  author = {Nengcheng Chen and Dongcheng E and Liping Di and Jianya Gong and Zeqiang Chen},
  year = {2007},
  doi = {10.3133/ofr20071047srp099},
  url = {https://pubs.usgs.gov/publication/ofr20071047SRP099},
  note = {Source identifier: ofr20071047SRP099}
}