Crosswalks Crosswalks from different metadata schema to OpenAIRE Available crosswalks are: RIOXX v2.0 to OpenAIRE Guidelines for Literature Repositories 3.0 is at https://www.rioxx.net/mappings/crosswalk_rioxx_2_0_openaire_3_0/ BioSchemas.org to OpenAIRE Guidelines for institutional & thematic repository managers (v4)