When pasting text from the Internet (e.g. your RefWorks bibliography), your Word document will sometimes be cluttered with small circles. These are called non-breaking spaces. The circles appear if you paste to a document that is open in your desktop app, but may not appear if you paste to an online version of your document e.g. in OneDrive or SharePoint.
To get rid of the circles:
When you insert RefWorks citations and bibliography into a document, computer links between your document and RefWorks are created. RefWorks calls this 'Content Control' although other software may refer to 'Field Codes'.
Publishers usually ask for Field Codes or Content Control to be removed so that the document you send them is plain text. It can also be useful to remove the content control if sending a document to reviewers e.g.documents which include field codes or Content Control can become corrupted if used with 'track changes' function in Word.
IMPORTANT - if you remove the Content Control, your document will no longer be able to change the citations or update the bibliography via RefWorks. Always, take a back up copy of your document before removing the 'Content Control', so that you have a version that will continue to interact with RefWorks should you need it.