. "S. Hartmann was an Oslo based lawyer."@en . "Correspondence regarding a research related enquiry by Hartmann for source material on the German occupation of Denmark and Norway during the Second World War."@en . "3 letters"@en . "WL3000/9/1/566" . . . "Correspondence with Hartmann, S."@en . . . . . . . "This material has been digitised. Readers should book a reading room terminal to access it."@en .