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We show in this comment that in an anisotropic Bianchi type I model of theKasner form, it is not possible to describe the growth of entropy, if we wantto keep the thermodynamics together with the dominant energy conditions. Thisconsequence disagrees with the results obtained by Brevik and Pettersen [Phys.Rev. D 56, 3322 (1997)].Comment: 2 pages, Latex, accepted in Phys. Rev.

Comment on “Viscous cosmology in the Kasner metric”