1. Plateau, J. Mém. Acad. Roy. Sci. Belg. 33 (1861), 5th series.
2. Foulk, G W., and J. E. Barkley. Ind. Eng. Chem. 35:1013 (1943).
3. Kirschke, K. Materialpruefung 1:235 (1959).
4. Bashkirov, M. M., V. Ya. Khentov, and M. S. Ostrikov. Kolloidn. Zh. 32:822 (1970).
5. Gleim, V. G. Zh. Prikl. Khim. 26:1157 (1953).