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On the "restricted cointegration test" as a test of the rational expectations hypothesis
Lopes, Artur C. B. da Silva, (1998)
The robustness of tests for seasonal differencing to structural breaks
Lopes, Artur C. B. da Silva, (2001)
The order of integration for quaterly macroeconomic time series : a simple testing strategy
Lopes, Artur C. B. da Silva, (2003)