SCHEEPERS, C.; STRASSER, R.; KRUGER, G. Effect of ozone on photosynthesis and seed yield of sensitive (S156) and resistant (R123) <i>Phaseolus vulgaris</i> L. genotypes in open-top chambers. Suid-Afrikaans Tydskrif vir Natuurwetenskap en Tegnologie / <i>South African Journal of Science and Technology</i&gt;, v. 32, n. 1, p. 1 page, 19 dez. 2013.