[igorius]

Nope, sorting by Authors is wrong!
To be more clear:
I want to get sorted Authors by:

Forname Lastname from A to Z or
Forname Lastname from Z to A

Sorting is right here:
Author_sort upwards ---> Adams, Ben to Zygowski, Tom
Author_sort downwards --> Zygowski, Tom to Adams, Ben

Sorting is wrong here:
Authors upwards -->Ben Adams to Tom Zygowsky
Authors downwards --> Tom Zygowsky to Ben Adams

Sorting is wrong, it shoud be:
Authors upwards --> Aaron Maier to Zyske Terence
Authors downwards --> Zyske Terence to Aaron Maier

See the attached pics: I have changed sorting to "Author_sort"