1. Sul concetto de media;Chisini;Period. Mat.,1929
2. The substitutive mean and certain subclasses of this general mean;Dodd;Ann. Math. Statist.,1940
3. Werke 3;Gauss,1866
4. The Works of Archimedes;Heath,1897
5. Problems and Propositions in Analysis;Klambauer,1979