 Stephane Bello, writing in 1939 with access to the Vatican archives, was the first scholar to write a dispassionate account of Yohannan Hormizd's career.He has been followed more recently by Habbi.Much of the recent scholarship on Yohannan Hormizd is in French or German, but convenient English summaries of his career were made by David Wilmshurst in 2000 and by Christoph Baumer in 2006.