//-->
Testing for a Valid Normalization of Cointegrating Vectors in Vector Autoregressive Processes.
Luukkonen, Ritva, (1999)
Point Optimal Tests for Testing the Order of Differencing in ARIMA Models
Saikkonen, Pentti, (1993)
Testing cointegration in infinite order vector autoregressive processes
Saikkonen, Pentti, (1997)