1. Derjaguin, B. V. andL. Landau, Acta physicochim.14, 633 (1941).
2. Verwey, E. J. W. andJ. Th. G. Overbeek, Theory of the Stability of Lyophobic Colloids (Amsterdam 1948).
3. Kruyt, H. R., Colloid Science, vol. 1 (Amsterdam 1952).
4. Smoluchowski, M. von, Z. physik. Chem.92, 129 (1917).
5. Fuchs, N., Z. Physik89, 736 (1934).