This chapter by Michael Stausberg was published in 2012, but I post it here due to its relevance and the recent availability of a PDF:
Stausberg, Michael. 2012. From power to powerlessness: Zoroastrianism in Iranian history. In Anh Nga Longva & Anne Sofie Roald (eds.), Religious minorities in the Middle East: Domination, self-empowerment, accommodation, 171–193. Leiden, Boston: Brill.
Read the article here.