Content Provider
PANGAEA - Data Publisher for Earth & Environmental Science
1,194
DataCite Metadata Store (German National Library of Science and Technology)
201
DataCite
123
Defense Technical Information Center: DTIC Technical Reports database
1
Directory of Open Access Journals: DOAJ Articles
1
LAEI VL (Lithuanian Institute of Agrarian Economics Virtual Library)
1
LSRC VL (Lithuanian Social Research Centre Virtual Library)
1
University of Tromsø: Munin Open Research Archive
1