Now create a document in Authorea or open an existing one.  Within the document, navigate to Document -> Data -> Bibliography.  Here you can upload the .bib file you created in Zotero through drag and drop or by selecting it as shown in Fig. 21.  Once your .bib file is uploaded, click on Data again for an option to navigate back to the document view.  Your reference file is now attached and ready for use within the document.