@book{225236,
	author = {Deutsche Forschungsgemeinschaft},
	title = {Transition periods in Iranian history :},
	publisher = {Association pour l'avancement des etudes iraniennes : Diffusion, E. Peeters,},
	year = {1987},
	series = {Studia Iranica.},
	address = {Leuven (Belgique) :},
	note = {English, French and German.}
}