RT Journal Article SR Electronic(1) A1 Vieira Barros, L.YR 1993 T1 Projeto e Implementaçăo de Filtros Digitais FIR - Forma Direta JF , VO OP SP cp-324-00110 DO https://doi.org/10.3997/2214-4609-pdb.324.575 PB European Association of Geoscientists & Engineers, SN 2214-4609, AB , UL https://www.earthdoc.org/content/papers/10.3997/2214-4609-pdb.324.575