Versnel, H. S., "The Festival for Bona Dea and the Thesmophoria", Cambridge University Press on behalf of The Classical Association, Greece & Rome, Second Series, Vol. 39, No. 1 (Apr., 1992), pp. 31–55.
Wildfang, Robin Lorsch, Rome's vestal virgins: a study of Rome's vestal priestesses in the late Republic and early Empire, Routledge/Taylor & Francis, 2007, googlebooks partial preview.