TY  - RPRT
TI  - Global polar geospatial information service retrieval based on search engine and ontology reasoning
AU  - Nengcheng Chen
AU  - Dongcheng E
AU  - Liping Di
AU  - Jianya Gong
AU  - Zeqiang Chen
PY  - 2007
DO  - 10.3133/ofr20071047srp099
UR  - https://pubs.usgs.gov/publication/ofr20071047SRP099
ID  - ofr20071047SRP099
ER  -