Vitanov, N. K. Max Planck Institute for the Physics of Complex Systems, Max Planck Society;
Vitanov, N. K., Dimitrova, Z. I., & Vitanov, K. N. (2013). Traveling waves and statistical distributions connected to systems of interacting populations. Computers & Mathematics with Applications, 66(9), 1666-1684. doi:10.1016/j.camwa.2013.04.002.