. . . . "The originals are held at the National Archives [formerly Public Record Office] and bear the archival reference: PRO WO.208.4673"@en . . "Jakob Sporrenberg presided over Aktion Erntefest in which 42,000 unarmed civilians were killed in 14 hours."@en . . "Open"@en . . "1 folder"@en . "Jakob Sporrenberg: copy documents"@en . "WL1283" . "This collection of copy documents deal with the war record and subsequent fate of Jakob Sporrenberg, successor to Globocnic, police chief of the Lublin area of Poland."@en . .