Resende, T. A., J. C. C. Campos, J. A. Silva, G. R. Souza, M. A. C. Alves, e A. P. Rezende. “Evaluation on the Influence of Piping Geometry and Valve Opening Time on an Internal Combustion Engine”. Revista Principia, vol. 1, nº 53, fevereiro de 2021, p. 112-23, doi:10.18265/1517-0306a2020v1n53p112-123.