?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.aufirst=F&rft.au=Waliyar%2C+F&rft.aulast=Waliyar&rft.date=2011&rft.title=Prevalence+of+afl+atoxin+contamination+in+groundnut+value+chains+and+strategies+to+enhance+food+safety+in+Mali&rft.genre=proceeding