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.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रGelbin, 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.
एमएलए (8वां संस्करण) प्रशस्ति पत्रGelbin, 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.
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