Enriques, F. (1914). Problems of Science. [S.l.: s.n.; translated by Katharine Royce, with an introduction by Josiah Royce
doi.org
dx.doi.org
Evans, G. C. (1925). «Review of Lezioni sulla Teoria Geometrica delle Equazioni e delle Funzioni Algebriche by F. Enriques. Additional book information: Vol. I and vol. II. Bologna, O. Chisini, 1915, 1918». Bull. Amer. Math. Soc. 31: 449–452. doi:10.1090/S0002-9904-1925-04091-4