Facts about JG27 During Battle of Britain

[F19_Löwe]

Hello!
Since this is my first post on this forum I will introduce myself.
My name is Anders, I am twenty-five years old and I live in Sweden.
WWII aircraft and certainly those from the Luftwaffe has
been a big interest of mine for many years and the search for more
information goes on just about every day.

Right now I'm looking for some information about JG27's involvement
in the Battle of Britain. I have John Weals book about the Jagdgeschwader
and all though it's a very good book I think it lacks the in-depth facts that
I want. I want more facts about their day-to-day actions in the battle
and info about claims and losses.
So far I haven't found any literature that has that kind of information
and I wonder if there are any books out these who has it?

Kind regards,
Anders