this paper http://cktse.eie.polyu.edu.hk/pdf-paper/Chaos-1209.pdf http://cktse.eie.polyu.edu.hk/pdf-paper/Chaos-1209.pdf comes to mind. I admit, the mathematic

this paper http://cktse.eie.polyu.edu.hk/pdf-paper/Chaos-1209.pdf http://cktse.eie.polyu.edu.hk/pdf-paper/Chaos-1209.pdf comes to mind. I admit, the mathematical model they came up with is somewhat above my head so I cannot attest how good it is. I just find the topic really intriguing.