De summo bono - Ulrich : von Strassburg, <1225-1277>. (OLS)http://semarc/name/573 (F. Meiner,, 1987)
Keywords: Ulrich <von Strassburg>. (OLS)http://semarc/subject/177; Filosofia occidentale medievale. (OLS)http://semarc/subject/2462