1. Desty, D.H. and Goldup, A. in Gas Chromatography 1960, R.P.W. Scott (ed.), Butterworths, London (1960) 162.
2. Scott, R.P.W. and Hazeldean, G.S.F., ibid (1960) 144.
3. Giddings, J.C., Anal. Chem. 34(4) (1962) 458.
4. Bouche, J. and Verzele, M., J. Gas Chromatogr. 6 (1968) 501.
5. Ilkova, E.L. and Mistryukov, F.A., J. Chrom. Sci. 9 (1971) 569.