Luke BG, Dahl CJ (1976) <br />Detection of O,O-diethyl-O-(2,5-dichlorophenyl) phosphorothioate and O,O-diethyl-O-(3,6-dichloro-2-pyridyl) phosphorothioate in meat fat<br /><i>J Assoc Off Analytical Chemistry</i> <b>59</b>: 1081<br /><br />