W. Davenport Robertson Ellen M. Leadem Jed Dube Jane Greenberg Design and Implementation of the National Institute of Environmental Health Sciences Dublin Core Metadata Schema. 193-199 2001 conf/dc/2001 Dublin Core Conference http://www.nii.ac.jp/dc2001/proceedings/abst-29.html db/conf/dc/dc2001.html#RobertsonLDG01