1. W.K. LOWEN, W.E. BLEIDNER, J.J. KIRKLAND and H.L. PEASE, Analytical Methods for Pesticides, Plant Growth Regulators and Food Additives (G. Zweig, ed.), Vol. IV, Academic Press, New York, p. 157 (1964)
2. R.L. DALTON and H.L. PEASE, J. Assoc. Offic. Agr. Chemists, 45, 377 (1962)
3. J.J. KIRKLAND, Anal. Chem. 34, 428 (1962)
4. W.H. GUTENMANN and D.J. LISK, J. Agr. Food Chem. 12, 46 (1964)
5. W.H. GUTENMANN and D.J. LISK, J. Gas Chromatog. 4, 424 (1966)