1. Van der Waals, J.D., PhD Thesis, Leiden, The Netherlands, 1873.
2. Smirnov, B.M., Usp. Fiz. Nauk, 2001, vol. 171, no. 12, p. 1291.
3. Cailletet, L.P. and Mathias, E.C., J. Phys. Théor. Appl., 1886, vol. 5, p. 549.
4. Timmemans, J., Physico-Chemical Constants of Pure Organic Compounds, Amsterdam: Elsevier, 1950.
5. Fillipov, L.P., High Temp., 1984, vol. 22, no. 4, p. 545.