Degradation of the herbicide 2,4-dichlorophenoxyacetic acid (2,4-D) dimethylamine salt by gamma radiation from cobalt-60 in aqueous solution containing humic acid - Campos, Sandro Xavier de; Vieira, Eny Maria; Cordeiro, Paulo Jorge Marques; Rodrigues Filho, Edson; Murgu, Michael (Radiation Physics and Chemistry, 2003)