Subsequent citations for different articles in @inbook/@incollection

[dcpurton]

It looks like when a subsequent citation is made for a different article in a collection or book, the details of the book should be in a short form: editor, title. editor does not have "ed.".

See https://sblhs2.com/2018/08/23/citing-reference-works-11-cambridge-history-of-christianity/