1. Abelson, P.H. 1987. Ozone and acid rain. Science 238: 141.
2. Anagostakis, S.L. and J. Kranz. 1987. Population dynamics of Cryphonectria parasitica in a mixed-hardwood forest in Connecticut. Phytopathology 77: 751–754.
3. Anderson, R.L and P.A. Mistretta. 1982. Management Strategies for Reducing Losses Caused by Fusiform Rust, Annosus Root Rot, and Littleleaf Disease. U.S.D.A. Forest Service, Agricul. Handbook No. 597, Asheville, NC, 30 pp.
4. Asrar, G., M. Fuchs, E.T. Hanemasu, and J.L. Hatfield. 1984. Estimating absorbed photosynthetic radiation and leaf area index from spectral reflectance of wheat. Agron. J. 76: 300–306.
5. Basiouny, F.M. 1986. Sensitivity of corn, oats, peanuts, rice, rye, sorghum, soy-bean and tobacco to UV-B radiation under growth chamber conditions. J. Argon. Crop Sci. 157: 31–35.