1.1XMLhttp://explain.z3950.org/dtd/2.1/catalog.opensciencedata.esa.int8000pycswOpen Science CatalogueOpen Science Catalogue powered by pycswabstractabstractcontributorcontributorcreatorcreatordatedateformatformatidentifieridentifierlanguagelanguagemodifiedmodifiedpublisherpublisherrelationrelationrightsrightssourcesourcesubjectsubjecttitletitletypetypetitle222Simple Dublin Core0