Steve Bunting is listed as either an author or co-author of two books in the forensics field that contain sections on exFAT – and gives a plug for my SANS paper on exFAT.
One book is:
Mastering Windows Network Forensics and Investigation
By Steven Anson, Steve Bunting, Ryan Johnson, Scott Pearson
and the other is:
EnCase Computer Forensics — The Official EnCE: EnCase Certified Examiner …
By Steve Bunting