1. Armitage, P., Berry, G., 1987. Statistical Methods in Medical Research. Blackwell, Oxford, UK, pp. 347–352
2. Raw milk composition and cheese yields in California: 1987 and 1988;Bruhn;J. Dairy Sci.,1991
3. Tests for comparing two estimated spectral densities;Coates;J. Time Series Anal.,1986
4. Cryer, J.D., 1986. Time Series Analysis. PWS Kent, Boston, MA, 286 pp
5. Diggle, P.J., 1990. Time Series: A Biostatistical Introduction. Oxford Scientific, Oxford, UK, pp. 94–133