doi> HALLACK, L. N. ; KAUFFMANN, R. ; SZKLO, A. . Price discovery in Brazil: causal relations among prices for crude oil, ethanol, and gasoline. Energy Sources Part B-Economics Planning and Policy, v. 15, p. 230-251, 2020.
doi> HALLACK, L. N. ; KAUFFMANN, R. ; SZKLO, A. . Price discovery in Brazil: causal relations among prices for crude oil, ethanol, and gasoline. Energy Sources Part B-Economics Planning and Policy, v. 15, p. 230-251, 2020.
