Hi,
I need to find in the main interface all books with multiple authors
After reading
this article I assumed that I needed to use a regular expression to find all books with "&" in the author field. Unfortunately, the following search return nothing:
author:~\&
I'd very much appreciate if someone could explain what I am doing wrong and point me in the right direction.
On the same topic, I would appreciate advice to find all books with one single author or no author at all.
Thanks in advance. W.