1. Almudevar, T., and Tibshirani, R. (1990), GAIM, Personal Computer Software for Generalized Additive Interactive Modelling, Toronto: S. N. Tibshirani
2. Enterprises.
3. Becker, R. A., Chambers, J. M., and Wilks, A. R. (1988), The New S Language, Pacific Grove, CA: Wadsworth.
4. Brillinger, D. R. (1974), “Cross-Spectral Analysis of Processes With Stationary Increments Including the G/G/∞ Queue,” The Annals of Probability 2, 815-827.
5. Brillinger, D. R. (1976), "Estimation of the Second-Order Intensities of a Bivariate Stationary Point Process," Journal of the Royal Statistical Society, Ser. B, 38, 60-66.