1. Bahill, A. T. andMcDonald, J. O. (1983) Frequency limitations and optimal step size for two-point central difference derivative algorithm with applications to human eye movement data.IEEE Trans.,BME-30, 191–194.
2. Bendat, J. S. andPiersol, A. G. (1971)Random data: analysis and measurement procedures. Wiley-Interscience, New York, USA.
3. Braaksma, J. T., Veth, A. F. L., Janssens, J., Stolte, L. A. M., Eskes, T. K. A. B., Hein, P. R. andvan der Weide, H. (1971) A comparison of digital and non-digital analysis of contraction records obtained from the nonpregnant uterusin vivo.Am. J. Obstet. Gynec.,110, 1075–1082.
4. Coren, R. L. andCsapo, A. I. (1963) The intra-amniotic pressure.,85, 470–483.
5. Csapo, A. I. (1981) Force of labor. InPrinciples and practice of obstetrics and perinatology.Iffy, L. andKaminetzky, H. A. (Eds.) John Wiley & Sons Inc., New York, 761–799.