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Additional information
Novosibirsk and Kazan. Translated from Sibirskii Matematicheskii Zhurnal, Vol. 25, No. 6, pp. 31–35, November–December, 1984.
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Gerasimov, V.N., Sakhaev, I.I. A counterexample to two hypotheses on projective and flat modules. Sib Math J 25, 855–859 (1984). https://doi.org/10.1007/BF00968939
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DOI: https://doi.org/10.1007/BF00968939