1. Lipfert, F.; Wyzga, R. J. Air & Waste Manage. Assoc. 1993, 45, 949–966.
2. Harvey, A.C. Time Series Models; MIT Press: Cambridge, MA, 1993; pp 89–95.
3. Kim, C.J.; Nelson, C.R. State Space Models with Regime Switching; MIT Press: Cambridge, MA, 1999; pp 19–58.