1 DCA, file 109.
2 Ibid.
3 DCA, file 803.
4 Ibid.
5 DCA, file 477.
6 Vonnegut, Letters.
7 DCA, file 802.
8 Ibid.
9 DCA, file 533.
10 Ibid.
11 DCA, file 472.
12 Ibid.
13 Klemperer, To the Bitter End.
14 Pleasingly, a number of Mauersberger’s folk songs have been issued on CD.
15 DCA, file 847.
16 Ibid.
17 Ibid.
18 DCA, file 107.
19 Ibid.
20 Ibid.