Nicht-Euklidische Geometrie

The Theory of the Top. Volume IV

The theory of the top

On Riemann's Theory of Algebraic Functions and Their Integrals

Differential- und Integral-Rechnung; Vorlesungen, Sommer [und] Winter Semester, 1895-1896/97

The Theory of the Top Volume III

Lectures on the ikosahedron and the solution of equations of the fifth degree

The Theory of the Top. Volume II

The Theory of the Top

Famous Problems of Elementary Geometry

On Riemann's theory of algebraic functions and their integrals