UMPONSTIRA, C.; KAWAYASKUL, S.; CHUCHAUNG, S.; HOMHAUL, W. Effect of Ozone on Nitrogen Fixation, Nitrogenase Activity and Rhizobium of Cowpea (Vigna unguiculata (L.) Walp). Asian Health, Science and Technology Reports, [S. l.], v. 17, n. 3, p. 213–220, 2009. Disponível em: https://ph03.tci-thaijo.org/index.php/ahstr/article/view/2324. Acesso em: 30 aug. 2026.