\input zb-basic \input zb-ioport \iteman{io-port 03875141} \itemau{Michon, Jean-Francis} \itemti{Codes de Goppa.} \itemso{S\'emin. Th\'eor. Nombres, Univ. Bordeaux I 1983-1984, Exp. No.7, 7 p. (1984).} \itemab A short account: all linear codes can be obtained using algebraic geometry, but at the moment this is not linked with decoding methods. \itemrv{C.Ferrero Cotti} \itemcc{} \itemut{Goppa codes; divisors of curves; Riemann-Roch theorem; linear codes} \itemli{} \end