1) Berkey, C. S., Reed, R. B. and Valadian, I. Midgrowth spurt in height of Boston children. Annals of Human Biology., (1983) , 10, 25-30.
2) Deming, J. Application of the Gompertze curve to the observed pattern of growth in length of 48 individual boys and girls during the adolescent cycleof growth. Human Biology., (1957) , 29, 83-122.
3) Frage, M., Hunt, J. C. and Vassilicos, J. C. Wavelets, Fractals and Fourier Transforms. Clarendon Press., (1993) , 1-65.