Nicolaus Cusanus und der deutsche Idealismus / Klaus Reinhardt und Harald Schwaetzer. - Reinhardt, Klaus. (OLS)http://pul/name/17004; Schwaetzer, Harald, 1967- (OLS)http://pul/name/91623 (S. Roderer-Verlag, 2007)
Bibliografia in nota.

Fourth Ezra : a comentary on the Book of Fourth Ezra / by Michael Edward Stone ; edited by Frank Moore Cross. - Stone, Michael Edward, 1938- (OLS)http://pul/name/14041; Moore Cross, Frank. (OLS)http://pul/name/50484 (Fortress Press, 1990)