Simonsen, Jørgen Bæk. “Peter Christensen: The Decline of Iranshahr. Irrigation and Environment in the Middle East, 500 BC – AD 1500. I. B. Tauris & Co Ltd., London, 2016”. Historisk Tidsskrift, bd. 115, nr. 2, april 2016, s. 594-5, doi:10.7146/ht.v115i2.56775.