In sum, the German translation of Troianos' overview of Byzantine legal sources constitutes the best work to date on this subject and is a must-have for anyone interested in later Roman as well as Byzantine law.
Spyros N. Troianos. Die Quellen des byzantinischen Rechts. Berlin; Boston: De Gruyter, 2017.
From Bryn Mawr Classical Review (BMCR). Review by Zachary Chitwood, Johannes Gutenberg University of Mainz