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Brief Communications
Letter to the Editor
A. V. Shkred
Citation:
A. V. Shkred, “Letter to the Editor”, Mat. Zametki, 47:4 (1990), 160; Math. Notes, 47:4 (1990), 422
Linking options:
https://www.mathnet.ru/eng/mzm3229 https://www.mathnet.ru/eng/mzm/v47/i4/p160
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