1. Colquhoun, D. (1971) Lectures of biostatics. ( Clarendon, Oxford )
2. Gail, M.H. & Boone, C.W. (1970) The locomotion of mouse fibroblasts in tissue culture. Biophysical J. 10, 980–993.
3. Mosteller, F. & Tukey, J.W. (1977) Data analysis and regression. (Addison-Wesley, Reading, Massachusetts).
4. Wilkinson, P.C. & Allan, R.B. (1978) Assay systems for measuring leucocyte locomotion: an overview in Leucocyte Chemotaxis, ed. Gallin, J.I. & Quie, P.G., ( Raven, New York).