1. Andel, J., Netuka, I., Zvara, K.: On threshold autoregressive processes. Kybernetika20, 89–106 (1984)
2. Nachbin, L.: The Haar integral. Princeton: D. Van Nostrand (1965)
3. Petrucelli, J.D., Woolford, S.W.: A thresholdAR(1) model. J. Appl. Prob.21, 270–286 (1984)
4. Tjur, T.: Probability based on Radon measures. New York: Wiley 1980
5. Lecture Notes in Statistics;H. Tong,1983