1. 1) S. Z. Knezevic, A. Datta, J. Scott and P. J. Porpiglia: Weed Technol. 23, 34–39 (2009).
2. 2) P. W. Geier, P. W. Stahlman and J. C. Frihauf: Weed Technol. 20, 622–626 (2006).
3. 3) S. R. Sikkema, N. Soltani, P. H. Sikkema and D. E. Robinson: HortScience 43, 170–172 (2008).
4. 4) M. J. Walsh, T. M. Fowler, B. Crowe, T. Ambe and S. B. Powles: Weed Technol. 25, 30–37 (2011).
5. 5) http://www.valent.com/agriculture/products/fierce/upload/2011-FIE-2001-Fierce-TIB.pdf (Accessed August 2013)