Bakke, A. L. and Gaessler, W. G.
1945. The effect of reduced light intensity on aerial and subterranean parts of European bindweed. Plant Physiol.
Boyd, J. W. and Murray, D. S.
1982. The effect of shade on silverleaf nightshade (Solanum elaeagnifolium). Weed Sci.
Burton, G. W., Jackson, J. E., and Knox, F. E.
1959. The influence of light reduction upon the production, persistence and chemical composition of coastal bermudagrass (Cynodon dactylon). Agron. J.
Fletcher, R. A. and Renney, A. J.
1963. A growth inhibitor found in Centaurea spp. Can. J. Plant Sci.
Furuya, M., Musatani, T., Higuchi, S., and Tsutsui, S.
1984. Effects of shading on growth and digestible dry matter content of timothy (Phleum pratense). Bull. Prefectural Kitami Agric. Exp. Stn.
Harada, H., Ito, T., Koyama, K., and Tanaka, T.
1981. Light requirements for growth of some perennial paddy weeds. Int. Rice Res. Newsl.
Holm, L. G., Plucknett, D. L., Pancho, J. V., and Herberger, J. P.
1977. The World's Worst Weeds: Distribution and Biology. Univ. Press of Hawaii. 609 pp.
Ishimine, Y., Miyazato, K., and Matsumoto, S.
1985. Physiological and ecological characteristics of weeds of sugarcane fields in the Ryukyus Islands. 3. Effect of shading on growth and seed production of Paspalum urvillei Steud. Weed Res. (Japan)
Keeley, P. E. and Thullen, R. J.
1978. Light requirement of yellow nutsedge (Cyperus esculentus) and light interception by crops. Weed Sci.
Maddox, D. M., Mayfield, A., and Poritz, N. H.
1985. Distribution of yellow starthistle (Centaurea solstitialis) and Russian knapweed (Centaurea repens). Weed Sci.
McWhorter, C. G. and Jordan, T. N.
1976. The effect of light and temperature on growth and development of Johnsongrass (Sorghum halepense). Weed Sci.
Patterson, D. T.
1978. Methodology and terminology for measurement of light in weed studies. Weed Sci.
Patterson, D. T.
1980. Shading effects on growth and partitioning of plant biomass on cogongrass (Imperata cylindrica) from shaded and exposed habitats. Weed Sci.
Peters, D. B.
1965. Water availability. Chapter 19 in Methods of Soil Analysis. Part I. Page 279–285
Black, C. A., ed. Am. Soc. Agron.
Swan, D. G.
1980. Field bindweed (Convolvulus arvensis).