Reference work
Islam in Iran ix. The Deputies of Mahdi
Verena Klemm
Distinguishes traditional continuous deputyship from sparse early evidence and later systematization, examining uncertainty after Askari's death and legitimating use of predicted occultation.
Bibliography entry · Source text is available through the cited link below.
View cited source · iranicaonline.org ↗
Edition and location
Encyclopaedia Iranica XIV/2 pp143–146 English HTML
Main article, early evidence and emergence of four-deputy scheme