Springer
Brief an Jonas Cohn (15.X.1908)
Vol. 117
Edmund Husserl
Brief an D. Cairns (21.III.1930)
Vol. 4
Eine Erinnerung an Edmund Husserl
Karl Löwith
Letter to E.P. Welch 17/21.V.1933 (German original)
Vol. 50
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