Riesgo, L., Areal, F. J., & Rodríguez-Cerezo, E. (2012). How can specific market demand for non-GM maize affect the profitability of Bt and conventional maize? A case study for the middle Ebro Valley, Spain. Spanish Journal of Agricultural Research, 10(4), 867-876. https://doi.org/10.5424/sjar/2012104-448-11