1. Gardner, N.J. and Ho, P.T.-J., ‘Lateral pressure of fresh concrete’, ACI Journal,Technical Paper, Title No. 76-35 (1979) 809–820.
2. Rodin, S., ‘Pressure of concrete on formwork’,Proceedings, Institution of Civil Engineers (London)1 Part 1 (6) (1952) 709–746.
3. ACI Committee 622, ‘Pressures on formwork’, ACI Journal,Proceedings,55 (2) (1958) 173–190.
4. Roby, H.G., ‘Pressure of concrete on forms’,Civil Engineering,5 (1935) 162.
5. Ritchie, A.G.B., ‘The pressures developed by concrete on formwork’,Civil Engineering and Public Works Review, Part 1,57 (672), Part 2,57 (673) (1962) 10.