Photograph of Carl Neumann, photographer and date not recorded; image as hosted on Wikimedia Commons (uploaded 2006), where it is marked public domain (Public Domain Mark 1.0).
On the Theory of the Logarithmic and the Newtonian Potential. First Communication.
1870Berichte über die Verhandlungen der Königlich Sächsischen Gesellschaft der Wissenschaften zu Leipzig, Mathematisch-Physische Classe, vol. 22, pp. 49–56ai-draft
