Two-stage inference using data envelopment analysis efficiency measurements in univariate production models. - Geraldo da Silva e Souza; Roberta Blass Staub (Int. Trans. Oper. Res., 2007)

Evolution of bank efficiency in Brazil: A DEA approach. - Roberta Blass Staub; Geraldo da Silva e Souza; Benjamin Miranda Tabak (Eur. J. Oper. Res., 2010)

Probabilistic measures of efficiency and the influence of contextual variables in nonparametric production models: an application to agricultural research in Brazil. - Geraldo da Silva e Souza; Eliane Gonçalves Gomes; Roberta Blass Staub (Int. Trans. Oper. Res., 2010)