POTGIETER, C.; CLAASSENS, S.; DE BEER, M. Biofumigation effect of <i>Brassica napus</i> on soil microbial communities. Suid-Afrikaans Tydskrif vir Natuurwetenskap en Tegnologie / <i>South African Journal of Science and Technology</i&gt;, v. 33, n. 1, p. 1 bladsy, 19 set. 2014.