%0 Journal Article %A Campos, L.M.B.C. %T On anisotropic, dispersive and dissipative wave equations %J Portugaliae mathematica %D 1982 %P 13-32 %V 41 %N 1-4 %I mathdoc %U http://geodesic.mathdoc.fr/item/PORMA_1982__41_1-4_115479/ %G en %F PORMA_1982__41_1-4_115479