(Berlin, Julius Springer, 1926). 8vo. Without wrappers. Extracted from "Mathematische Annalen. Begründet 1868 durch Alfred Clebsch und Carl Neumann. 95. Band". Pp. 683-704.
First printing. This paper was written as a mathematical exposition of the Three-Man-Paper 'Zur Quantenmechanik II' by Born, Jordan, and Heisenberg from the same year.
Order-nr.: 44772