The German weekly “Der Freitag” published on 08 April 2009 an article by Hans-Joachim Petsche (Potsdam) commemorating the 200th anniversary of Grassmann on 15 April 2009, entitled:
Die Verwandlung des Raums in Zahlen
For the full text of the article (in German) please see
Source: Email by H.-J. Petsche, 17 April 2009.