. . "Correspondence between Erich Kulka and Josef Hirschkorn from Teplice regarding Jewish pilots who served in the Czech Air Force within the framework of the British Army during the World War II period, 1993-1994"@eng . "Correspondence between Erich Kulka and Josef Hirschkorn from Teplice regarding Jewish pilots who served in the Czech Air Force within the framework of the British Army during the World War II period, 1993-1994"@eng . .