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Interpolation and backdating with a large information set
Angelini, Elena, (2003)
Frequency domain principal components estimation of fractionally cointegrated processes
Morana, Claudio, (2004)
A Chi-square test for a unit root
Kahn, James A., (1990)
A chi-square test for a unit root
A consistent test for the null of stationarity against the alternative of a unit root
Kahn, James A., (1991)