My style needs the “series title” and “series volume” field in brackets. As long both fields are filled, everthing works fine, but in some entries the series number is empty. I managed similar issues by using the “Link adjacent text”, but this time I am completely without the right idea to fix the issue. If the series Volume field is empty, the bracket and the dot are missing. Any help?
Author.| Year.| Title.| (Series Title|°Series Volume).|°Place Published: Publisher.