1. Derjaguin BV, Landau LD (1941) Acta Phys Chim URSS 14:633
2. Verwey EJW, Overbeek JTG (1948) Theory of the Stability of Lyophobic Colloids Elsevier, Amsterdam
3. Burzagh A von (1929) Kolloid Z Polymere 199:13
4. Burzagh A von (1930) Kolloid Z 47:370
5. Van den Tempel MJ (1958) J Colloid Sci 13:125