Santo, G. do E., and W. de P. Pinto. “Spectral Analysis of Time Series: An Application for Air Pollution in the City of Vitória, Espírito Santo, Brazil”. The Journal of Engineering and Exact Sciences, vol. 8, no. 2, Mar. 2022, pp. 13892-01e, doi:10.18540/jcecvl8iss2pp13892-01e.