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Additional information
Translated from Sibirskii Matematicheskii Zhurnal, Vol. 10, No. 6, pp. 1258–1275, November–December, 1969.
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Van Kkhue, N. Basis and A-basis. Sib Math J 10, 932–945 (1969). https://doi.org/10.1007/BF00990771
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DOI: https://doi.org/10.1007/BF00990771