1. Kirkland, J. J., J. Chromatography Sci.7, 361 (1969).
2. Kirkland, J. J., J. Chromatography Sci.8, 72 (1970)
3. R. A. Henry, Pittsburgh Conference on Analytical Chemistry and Applied Spectroscopy, Cleveland, OH, March 2–5
4. R. A. Henry, J. A. Schmit, Chromatographia
5. Chromatographic Method 820M3