Authors: Ribeiro, ES Dias, LE Alvarez, VH Mello, JWV Daniels, WL

Citation: Es. Ribeiro et al., Dynamics of sulfur fractions in Brazilian soils submitted to consecutive harvests of sorghum, SOIL SCI SO, 65(3), 2001, pp. 787-794

Authors: Ribeiro, ES Gushikem, Y

Citation: Es. Ribeiro et Y. Gushikem, Cobalt(II) tetrasulfophthalocyanine complex adsorbed on a silica gel surface chemically modified with 3-N-propylpyridinium chloride: Oxalic acid oxidation study, ELECTROANAL, 11(17), 1999, pp. 1280-1284

Authors: Ribeiro, ES Gushikem, Y

Citation: Es. Ribeiro et Y. Gushikem, Iron(II) tetrasulphophthalocyanine complex adsorbed on a silica gel surface chemically modified by 3-n-propylpyridinium chloride, ELECTR ACT, 44(20), 1999, pp. 3589-3592