1. P. J. B. Hart (1971 ) A comparative study of five species offish in the River Nene, Northants . PhD Thesis , University of Liverpool.
2. Field Trials of Fish Marking using a Jet Inoculator
3. G. J. A. Kennedy (1976 ) Experiments on homing and home range behaviour in roach and minnow shoals . DPhil Thesis , New University of Ulster.