[1]
“ Public e-procurement and the duality of technology: a comparative study in the context of Brazil and of the state of Paraíba ”, JISTEM J. Inf. Syst. Technol. Manag. (Online), vol. 8, no. 2, pp. 315–330, Jan. 2011, doi: 10.4301/S1807-17752011000200003.