Gelbin, C. S. (2020). Learning years on the path to dissidence: Stefan Heym's friendship with Robert Havemann and Wolf Biermann. Rebuilding Jewish life in Germany.
Lua i Stíl Chicago (17ú heag.)Gelbin, Cathy S. "Learning Years on the Path to Dissidence: Stefan Heym's Friendship with Robert Havemann and Wolf Biermann." Rebuilding Jewish Life in Germany 2020.
Lua MLA (8ú heag.)Gelbin, Cathy S. "Learning Years on the Path to Dissidence: Stefan Heym's Friendship with Robert Havemann and Wolf Biermann." Rebuilding Jewish Life in Germany, 2020.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.