//-->
Testing the null hypothesis of stationarity against the alternative of a unit root : how sure are we that economic time series have a unit root?
Kwiatkowski, Denis E., (1991)
Moving average conditional heteroscedastic processes
Yang, Minxian, (1992)
A modified canonical correlation approach to approximate state space modelling
Heij, Christiaan, (1991)
Exponential stabilization of stochastic interval system with time dependent parameters
Udom, Akaninyene Udo, (2012)