Stols, E., and Jacques Berner. “Ozone Leads to an Increase of Hydrogen Peroxide Levels and Peroxidase Activity in Two Maize Varieties”. Suid-Afrikaans Tydskrif vir Natuurwetenskap en Tegnologie / <i>South African Journal of Science and Technology</i&gt; 31, no. 1 (May 23, 2012): 1 bladsy. Accessed December 22, 2024. http://satnt.co.za/index.php/satnt/article/view/299.