Content Provider
DataCite Metadata Store (German National Library of Science and Technology)
2
GFZpublic (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam)
2
Ghent University Academic Bibliography
2
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center)
1
Università degli Studi di Genova: CINECA IRIS
1