1. S. Ross, Stochastic Processes, 2nd edition. New York, NY: J. Wiley, !996.
2. W. Schottky, “Über spontane stromschwankungen in verschiedenen elektrizitätsleitern,” Annalen der Physik, vol. 57, pp. 541–567, 1918.
3. N. Campbell, “Discontinuous phenomena,” Proc. Cambridge Phil. Soc., vol. 15, pp. 117–136, 1909.
4. R. G. Gallager, Stochastic Processes: Theory for Applications. Cambridge, United Kingdom: Cambridge University Press, 2014.
5. S. Karlin and H. M. Taylor, A First Course in Stochastic Processes, 2nd edition. New York, NY: Academic Press, 1975.