The entries of the bibliography are also accessible via APIs. On the one hand, they are embedded as machine-readable <ref xmlns="http://www.tei-c.org/ns/1.0" target="https://web.archive.org/web/20140913071820/http://ocoins.info/">ContextObjects in spans</ref> in the HTML page of <hi xmlns="http://www.tei-c.org/ns/1.0" rendition="#i">edition humboldt digital</hi>. This allows them to be transferred directly into common literature management systems at the click of a mouse. On the other hand, the complete biography is also accessible as a publicly viewable Zotero group via the <ref xmlns="http://www.tei-c.org/ns/1.0" target="https://www.zotero.org/support/dev/web_api/v3/basics">Zotero API</ref> at <ref xmlns="http://www.tei-c.org/ns/1.0" target="https://api.zotero.org/groups/667230/items">https://api.zotero.org/groups/667230/items</ref>.