F. J. Schenck and J. E. Hobbs (July 2004). “Evaluation of the Quick, Easy, Cheap, Effective, Rugged, and Safe (QuEChERS) Approach to Pesticide Residue Analysis”. Bulletin of Environmental Contamination and Toxicology (New York: Springer) 73 (1): 24–30. doi:10.1007/s00128-004-0388-y. PMID15386067.
“Analysis of pesticide residues using the Quick Easy Cheap Effective Rugged and Safe (QuEChERS) pesticide multiresidue method in combination with gas and liquid chromatography and tandem mass spectrometric detection”. Anal Bioanal Chem389 (6): 1697–714. (November 2007). doi:10.1007/s00216-007-1610-7. PMID17909760.
F. J. Schenck and J. E. Hobbs (July 2004). “Evaluation of the Quick, Easy, Cheap, Effective, Rugged, and Safe (QuEChERS) Approach to Pesticide Residue Analysis”. Bulletin of Environmental Contamination and Toxicology (New York: Springer) 73 (1): 24–30. doi:10.1007/s00128-004-0388-y. PMID15386067.
“Analysis of pesticide residues using the Quick Easy Cheap Effective Rugged and Safe (QuEChERS) pesticide multiresidue method in combination with gas and liquid chromatography and tandem mass spectrometric detection”. Anal Bioanal Chem389 (6): 1697–714. (November 2007). doi:10.1007/s00216-007-1610-7. PMID17909760.