individual publications

• academic article

  • Noise and nonlinearity in measles epidemics: Combining mechanistic and statistical approaches to population modeling.  American Naturalist.  151:425-440. 1998
  • Estimating the Lyapunov exponent of a chaotic system with nonparametric regression.  Journal of the American Statistical Association.  87:682-695. 1992
  • Finding chaos in noisy systems (with discussion).  Journal of the Royal Statistical Society. Series B.  54:399-426. 1992
  • Convergence rates and data requirements for Jacobian-based estimates of Lyapunov exponents from data.  Physics Letters A.  153:357-363. 1991

• chapter

  • Detecting nonlinearity and chaos in epidemic data.  Epidemic models: Their structure and relation to data. 229-247. 1995