3Welty C A, Jenkins J. Formal ontology for subject [J]. Data &Knowledge Engineering, 1999,31 ⑵:155-181. 被引量:1
4Ashbumer M, Ball C A,Blake J A, et al. Gene Ontology: tool for theunification of biology[J]. Nature genetics, 2000, 25(1): 25-29. 被引量:1
5Angele J, MOnch E,Oppermann H, et al. Ontology-based queryand answering in chemistry: Ontonova project halo[M].Heidelberg:Springer International Publishing, 2003.913-928. 被引量:1
6Dan McCreary. K-12 Education Metadata and the NIEMCase Study:Extending the National Information Exchange Model to IncludeK-12 Education[EB/OL].http://www.danmccreary.com/presentations/semweb2006/education_ontology.pdf,2015-1-10. 被引量:1