CRUZ, R.C., PORTO, M.L., SILVEIRA, G.L. da, CRUZ, J.C., PEREIRA, R.D. and DARU, R.L. 2016. FFTSINT: A tool for recurrence analysis of peaks in the spectral analysis of daily hydrologic series. Brazilian Journal of Biometrics. 33, 4 (Jan. 2016), 426–444.