1. The nature of lattice expansion and its relation to hydration in montmorillonite and vermiculite;Barschad;Amer. Mineralogist,1949
2. A study of the behaviour of montmorillonite on wetting;Bradley;Z. Krist,1937
3. The control of soil water;Childs;Adv. Agron.,1950
4. A note on the pressure plate-membrane apparatus;Collis-George;Soil Sci,1952