1. Springer Ser. Synergetics;W Weidlich,1983
2. Springer Series Synergetics;H Haken,1977
3. Springer Series in Synergetics;H Haken,1983
4. R. L. Stratonovich, Topics in the Theory of Random Noice, Vol. 1 and 2 (Gordon and Breach, New York 1963 and 1967).
5. A.T. Bharucha-Reid, Elements of the Theory of Markov Processes and their Applications (Mc-Graw-Hill, New York 1960).