@article{PORMA_1996__53_3_47625,
     author = {Roversi, M.S.M. and Chiacchio, A.O. and Queiroz, M.L.B.},
     title = {Convergence of approximation processes on convex cones.},
     journal = {Portugaliae mathematica},
     pages = {339--353},
     publisher = {mathdoc},
     volume = {53},
     number = {3},
     year = {1996},
     zbl = {0859.41018},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/PORMA_1996__53_3_47625/}
}