Papaerback: 128 pages
Publisher: Timia edizioni, Roma
Published in: July 2021

in: Jane Manning: Vocal Repertoire for the Twenty-First Century, Vol. 1: Works Written Before 2000, Oxford University Press (London), 2020, S. 125-127

1 CD
Label: Deutsche Grammophon (DG 483 8534)
Published in 2020

Paperback: 301 pages
Publisher: Aracne editrice, Canterano (RM)
Published in: November 2020

1 CD
Label: Rubicon (RCD 1065)
Published in 2020

2 CDs
Label: Capriccio (C5405)
Puplished in 2020 (Recorded in 2019)

1 CD
Label: Haenssler Classic (HC 20004)
Published in 2020

1 CD
Label: Genuin (GEN 20694)
Published in 2020

1 CD
Label: WERGO (WER 73912)
Published in: 2020 (Recorded in 2015, 2017, 2019)

in: Pollock, E. R.: Opera After the Zero Hour: The Problem of Tradition and the Possibility of Renewal in Postwar West Germany, Oxford University Press, London, 2019, S. 70-100