Carbonari, B.M.T., Gettu, R., Agullo, L. and Carbonari, G. 2003. Analysis of production factors in high performance concrete. Semina: Ciências Exatas e Tecnológicas. 24, 1 (Jul. 2003), 49–58. DOI:https://doi.org/10.5433/1679-0375.2003v24n1p49.