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Additional information
M. V. Lomonosov Moscow State University. Translated from Mekhanika Polimerov, No. 4, pp. 668–672, July–August, 1977.
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Darvish, D.M. Torsion of a beam manufactured from a nonlinear viscoelastic material. Polymer Mechanics 13, 561–565 (1977). https://doi.org/10.1007/BF00859337
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DOI: https://doi.org/10.1007/BF00859337