Tran, H., K. C. Harrington, H. Ghanizadeh, A. W. Robertson, and M. S. Watt. “Suppression by Three Grass Species of Broom Seedling Emergence and Survival”. New Zealand Plant Protection, Vol. 71, June 2018, pp. 57-65, doi:10.30843/nzpp.2018.71.142.