Gösta Mittag-Leffler and Vito VolterraMagnus Gustaf Mittag-Leffler, Vito Volterra, Frédéric Jaëck, European Mathematical Society · First published 2019Open the Tome
On the hypotheses which lie at the bases of geometryBernhard Riemann, William Kingdon Clifford, David R. Wilkins, European Mathematical Society · First published 2001Open the Tome
