Fine, Steven. Note on rabbinic titles and the communities that create them. In: Ennoble and enable: Essays in honor of Richard M. Joel. Zev Eleff and Jacob J. Schacter, editors. The Michael Scharf PUblication Trust of Yeshiva University Press ; Maggid Books. 2018: 311-316.
*This is constructed from limited available data and may be imprecise.