1.		An introduction to the theory of elasticity for engineers and physicists / R. V. Southwell Autor: Southwell, R.V.
2.		Relaxation methods in engineering science : a treatise on approximate computation / E. B. Moullin , D. R. PYE , R. V. Southwell Autor: Moullin, E. B. Pye, D. R. Southwell, R.V. Data: 1951