fatcat should probably allow all roles, but only emphasize: - author - editor - translator - illustrator possible additional (non-CSL) roles: - chair Crossref has the additional "chair" contributor_role: '"chair" should only be used for conference proceedings to indicate a conference chair'. All CSL Roles: - author - collection-editor - composer - container-author - director - editor - editorial-director - editortranslator - illustrator - interviewer - original-author - recipient - reviewed-author - translator From: