1. Cox, D.R., Isham, V.: Point Process. Chapman and Hall, New York (1980)
2. Feller, W.: An Introduction to Probability Theory and Its Applications, vol. 2, 2nd edn. Wiley, New York (1971). Ch. XI, Sect. 4
3. Karlin, S., Taylor, H.M.: A First Course in Stochastic Processes, 2nd edn. Acadepic Press, New York (1975)
4. Sanford, J., Brewer, W., Smith, F., Baumgardner, J.: The waiting time problem in a model hominin population. Theor. Biol. Med. Model. 12, 18 (2015).
https://doi.org/10.1186/s12976-015-0016-z
5. Montroll, E.W., Weiss, G.H.: Random walks on lattices. II. J. Math. Phys. 6, 167 (1965)