1. Definitive equations for the fluid resistance of spheres;Davies,1945
2. The development and field use of a snow collector for acid precipitation studies;Hall;Warren Spring Laboratory, Stevenage, U.K., Rep. No. LR 585(AP),1987
3. An improved, readily available dustfall gauge;Hall;Atmospheric Environment,1986
4. A wind tunnel study of the efficiency of three deposit gauges;Ralph;Warren Spring Laboratory, Stevenage, U.K., Rep. No. LR 499(AP),1984