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Testing for a Valid Normalization of Cointegrating Vectors in Vector Autoregressive Processes.
Luukkonen, Ritva, (1999)
Power of the Lagrange multiplier test for testing an autoregressive unit root
Luukkonen, Ritva, (1996)
Point Optimal Tests for Testing the Order of Differencing in ARIMA Models
Saikkonen, Pentti, (1993)