1. N. H. Anderson, D. J. Hall, and D. Seaman .1987 .Spray retention: effects of surfactants and plant species., Asp. Appl. Biol, 14 :233 –243 .
2. C. M. Boerboom, and D. L. Wyse .1988 .Influence of glyphosate concentration on glyphosate absorption and translocation in Canada thistle (Cirsium arvense)., Weed Sci, 36 :291 –295 .
3. A partitioned energy transfer model for spray impaction on plants
4. Physical, chemical and biological appraisal of alternative spray techniques in cereals
5. R. D. Fox, D. L. Reichard, and R. D. Brazee .1992 .A video analysis system for measuring droplet motion., Appl. Eng. Agric, 8 :153 –157 .