Optimal monitoring and risk limits for a wastewater biological treatment serial plant. - Gheorghe Maria; Cristina Maria; Romualdo Salcedo; Sebastião Feyo de Azevedo (ECC, 2001)

Can spreadsheet solvers solve demanding optimization problems? - Eugénio C. Ferreira; Romualdo Salcedo (Comput. Appl. Eng. Educ., 2001)