Keywords: CFGeiser.jpeg Carl Friedrich Geiser ETH Zürich after 1873 ETH Zürich Other versions PD-old-100 Original upload log <div class delh > de wikipedia Wdwdbot script bot_filetrans pl r46M de wikipedia CFGeiser jpeg 2007-11-22 16 11 34 Askanius 13573 Bytes Andere Versionen </div> User Wdwdbot/Files uploaded by Wdwdbot Faculty of the ETH Zurich 19th-century mathematicians |