Reddiex, S.J., S.D. Wratten, G.W. Bourdot, C.N. Merfield, and G.D. Hill. 2003. “Efficacy of Mechanical Weed Management in Organic Process Vegetables”. New Zealand Plant Protection 56 (August):276-76. https://doi.org/10.30843/nzpp.2003.56.6085.