. "This material has been digitised. Readers should book a reading room terminal to access it."@en . "Correspondence regarding intellectual support for an aspect of Busch’s dissertation. Beside letters, it contains an excerpt of Busch’s manuscript."@en . . . "WL3000/9/1/246" . . . "Correspondence with Busch, Alexander"@en . . . "Alexander Busch was a German PhD candidate in the field of sociology."@en . . "14 items"@en . .