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Additional information
Alma-Ata. Translated from Sibirskii Matematicheskii Zhurnal, Vol. 32, No. 5, pp. 194–195, September–October, 1991.
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Falaleev, L.P. Inequalities for the Landau constants. Sib Math J 32, 896–897 (1991). https://doi.org/10.1007/BF00971190
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DOI: https://doi.org/10.1007/BF00971190