Yamna BOUKHATEM , Benyattou BENABDERRAHMANE . GENERAL DECAY FOR A VISCOELASTIC EQUATION OF VARIABLE COEFFICIENTS WITH A TIME-VARYING DELAY IN THE BOUNDARY FEEDBACK AND ACOUSTIC BOUNDARY CONDITIONS[J]. Acta mathematica scientia, Series B, 2017 , 37(5) : 1453 -1471 . DOI: 10.1016/S0252-9602(17)30084-X

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