Simonsen JB. Peter Christensen: The Decline of Iranshahr. Irrigation and Environment in the Middle East, 500 BC – AD 1500. I. B. Tauris & Co Ltd., London, 2016. ht [Internet]. 11. april 2016 [henvist 1. maj 2024];115(2). Tilgængelig hos: https://tidsskrift.dk/historisktidsskrift/article/view/56775