%0 Journal Article %A Roversi, M.S.M. %A Chiacchio, A.O. %A Queiroz, M.L.B. %T Convergence of approximation processes on convex cones. %J Portugaliae mathematica %D 1996 %P 339-353 %V 53 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/PORMA_1996__53_3_47625/ %G en %F PORMA_1996__53_3_47625