. "This material has been digitised. Readers should book a reading room terminal to access it."@en . . . "Correspondence regarding archival material about the trial on crimes committed in Sachsenhausen concentration camp."@en . . "Dr. Vaclav Kral was a Czechoslovakian historian working for the country’s Academy of Sciences."@en . . . "4 letters"@en . . . . "WL3000/9/1/809" . . "Correspondence with Kral, Vaclav"@en .