SmythSJ.Genetically modified crops, regulatory delays and international trade. Food Energy Secur, 2017; 6:78–86. DOI: 10.1002/fes3.100.
4.
GoodwinBK, MarraM, PiggottN. The cost of a GMO-free market basket of food in the US. In: KalaitzandonakesN, PhillipsPWB, WesselerJ, et al. (eds) The Coexistence of Genetically Modified, Organic and Conventional Foods. New York: Springer, 2016:363–378.