Verbose check to see if title is returned by CrossRef as a list or a string. It's usually a list with the only entry being a string (the title). However, sometimes it's just a string. Given the inconsistency, I'm not ruling out some other data structure, in which case, I'm defaulting to an empty str, which hopefully prevents breaking of the code. However, it will still probably mean discarding the result.
Verbose check to see if title is returned by CrossRef as a list or a string. It's usually a list with the only entry being a string (the title). However, sometimes it's just a string. Given the inconsistency, I'm not ruling out some other data structure, in which case, I'm defaulting to an empty str, which hopefully prevents breaking of the code. However, it will still probably mean discarding the result.