1. Ambler, J.E., R.A. Rowland and N.K. Maher (1978) Response of selected vegetable and agronomic crops to increased UV-B irradiation under field conditions. UV-B Biological and Climatic Effects Research (BACER), Final Report. EPA-IAG-D6–0168. U.S. EPA, Washington, D.C.
2. Antonovics, J. (1975) Predicting evolutionary response of natural populations to increased UV radiation. In. Climatic Impact Assessment Program (CIAP), Monograph 5 (Edited by Nachtwey, D.S., M.M. Caldwell and R.H. Biggs), pp. 8–7 — 8–27. U.S. Dept. Transport, Report No. DOT-TST-75–55, National Techn. Infor. Serv., Springfield, Virginia.
3. Barnes, P.W., S.D. Flint and M.M. Caldwell (1987) Photosynthesis damage and protective pigments in plants from a latitudinal arctic/alpine gradient exposed to supplemental UV-B radiation in the field. Arctic and Alpine Research 19,21–27.
4. Becwar, M.R., F.D. Moore III and M.J. Burke (1982) Effects of deletion and enhancement of ultraviolet-B (280–315 nm) radiation on plants grown at 3000 m elevation. J. Amer. Soc. Hort. Sci. 107,771–779.
5. Biggs, R.H., S.V. Kossuth and A.H. Teramura (1981) Response of 19 cultivars of soybeans to ultraviolet-B irradiance. Physiol. Plant. 53,19–26.