- Hydromaster: Keeps Track of Hydrological Data,
C. Jeffries, A.W. Wakelin and R.M. Ashley
Paper 21.1 from CCP: 4/5, ISBN 0-948749-03-2 (1987)
- The Use of a Microcomputer for the Simulation of Flows in the Dunfermline Sewerage System,
C. Jeffries and R.M. Ashley
Paper 23.1 from CCP: 2/3, ISBN 0-948749-00-8 (1985)