Studies in the collections of twelth-century decretals / from the papers of the late Walther Holtzmann ; edited, revised, and translated by C.R. Cheney and Mary G. Cheney. - Holtzmann, Walther, 1891-1963. (OLS)http://pul/name/10102; Cheney, Mary G. (OLS)http://pul/name/10103; Cheney, Christopher Robert, 1906- (OLS)http://pul/name/6979 (Biblioteca Vaticana, 1979)