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Additional information
Kuibyshev. Translated from Sibirskii Matematicheskii Zhurnal, Vol. 28, No. 3, pp. 152–156, May–June, 1987.
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Levichev, A.V. A left-invariant Lorentz order on the basic affine group. Sib Math J 28, 473–476 (1987). https://doi.org/10.1007/BF00969581
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DOI: https://doi.org/10.1007/BF00969581