Gesammelte Mathematische Werke und Wisshchaftliche Nachlass --
Nachträge.

"This Dover edition, first published in 2017, is an unabridged republication of the work originally published by Dover Publications Inc., New York, in 1953, which was itself a republication of the Second edition of Bernhard Riemann's Gesammelte Mathematische Werke, published in 1892, and the Supplement (Nachträge), published in 1902. An introduction, written by Professor Hans Lewy, was prepared specially for the 1953 edition."- Bibliographical Note

Bernhard Riemann, edited by Heinrich Weber, with the assistance of Richard Dedekind, with a supplement edited by M. Noether and W. Wirtinger, A new introduction by Professor Hans Lewy.