Letter to Dr. Konstantin Frank from Arnulf Esterer, 1972

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Esterer, A. (1972). Letter to Dr. Konstantin Frank from Arnulf Esterer, 1972 (1–). https://oaks.kent.edu/node/3431
Esterer, Arnulf. 1972. “Letter to Dr. Konstantin Frank from Arnulf Esterer, 1972”. https://oaks.kent.edu/node/3431.
Esterer, Arnulf. Letter to Dr. Konstantin Frank from Arnulf Esterer, 1972. 18 Apr. 1972, https://oaks.kent.edu/node/3431.