TY  - RPRT
TI  - Yield effects of genetically modified crops in developing countries.
AU  - Matin Qaim
AU  - David Zilberman
PY  - 2003
DO  - 10.1126/science.1080609
UR  - https://pubmed.ncbi.nlm.nih.gov/12574633/
ID  - 12574633
ER  -