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Evaluating the effectiveness of Brazilian stock market indices: using the example of the covid-19 <a href=http://droad.mn/xen-crypto-price-prediction-future-trends-and/>http://droad.mn/xen-crypto-price-prediction-future-trends-and/</a>. 26.Bariviera A.F., Font-Ferrer A., Sorrosal-Forradellas M.T., Rosso O.A. |