1. W. J. M. Rankine, Proc. I. Civ. Engr., 105 (1983)
2. W. Fairbairn, Phil. Trans. Roy. Soc. 154, 311 (1864). https://doi.org/10.1098/rstl.1864.0008
3. A. Wöhler, Zf.Bauwesen, 1860, p. 583; 1863, p. 223; 1886, p. 67; 1870, 73.
4. British Engine Boiler & Electrical Insurance Co. Ltd., Technical Report—New Series, I, 103.
5. Ibid, p. 114.