series of articles in Pforzheimer Zeitung pointed to at the bottom of the References, including References Pforzheimer Zeitung of Febr. 4, Febr. 11, Febr. 17, 2005. The 30,000 people fed by makeshift kitchens is reported in References Pforzheimer Zeitung of February 25, 2005. The Foreign labour taken from References Groh. The number of foreign workers who died in the bombings is reported in References Pforzheimer Zeitung of February 10, 2005. These figures are similar to References Groh, but must be from another source which is not recorded. The information about Pforzheim from References Groh. The name of the "Wallberg" can be found on any decent map of Pforzheim, including the one at the official internet site of the City of Pforzheim (Citymap of Pforzheim), where the Wallberg is indicated under this name with a height of 417.5 meters above sea level. References Campaign Diary 1944 Bomber Command 60th Anniversary website Campaign Diary February 1945 Bomber Command 60th Anniversary website Pforzheim - 23 February 1945 by Christian Groh, in: historicum.net dated 24.4.2005. In German. Report of magazine 'Stern' In German. Documentation about the raid on Pforzheim In German and partly in English Pforzheimer Zeitung of February 4, 2005, No.28, p. 22 (in German) Pforzheimer Zeitung of February 9, 2005, No.32, p. 18 (in German) Pforzheimer Zeitung of February 10, 2005, No.33, p. 18 (in German) Pforzheimer Zeitung of February 11, 2005, No.34, p. 20 (in German) Pforzheimer Zeitung of February 12, 2005, No.35, p. 25 (in German) Pforzheimer Zeitung of February 17, 2005, No.39, p. 18 (in German) Pforzheimer Zeitung of February 23, 2005, No.44, p. 22 (in German) Pforzheimer Zeitung of February 25, 2005, No.46, p. 24 (in German) Pforzheimer Zeitung of February 28, 2005, No.48, p. 28 (in German) Pforzheimer Zeitung of March 4, 2005, No.52, p. 20 (in German) (Note: The series of Pforzheimer Zeitung articles can be found at "Pforzheimer Zeitung online archive" under "23. February 1945") Ursula Moessner-Heckner: Pforzheim. Code Yellowfin. Eine Analyse der Luftangriffe 1944 - 45, Thorbecke, Sigmaringen, Germany; ; (October 1997) Movie "Code Yellowfin", documentary, Germany 2005, directed by Peter Müller-Buchow Conflicts in 1945 Firebombings Germany–United Kingdom military relations 1945 in Germany Pforzheim World War II strategic bombing of Germany