1996. Application of entropy measures derived from the ergodic theory of dynamical systems to rat locomotor behavior, M. Paulus, M. Geyer, L. Gold, A. Mandell, Proc. Natl. Acad. Sci. (USA) 87:723-727, 1990. Long-range interactions in sequences of human behavior, Martin Paulus, Phys. Rev. E. 55:3249-3256,