1. K. K. Unger, “Porous Silica — Its Properties and Use as Support in Column Liquid Chromatography”, Elsevier, Amsterdam, 1979.
2. C. S. G. Phillips, C. E. Scott, inJ. H. Purnell (Editor), “Progress in Gas Chromatography”, pp. 121–152, Wiley-Interscience, New York, 1968.
3. A. V. Kiselev, Ya. I. Yashin, “Gazo-Adsorbtsionnaya Khromatografiya”, (Gas-Adsorption Chromatography) Nauka, Moscow, 1967.
4. A. F. Isbell, Jr.,D. T. Sawyer, Anal. Chem.,41, 1381 (1969).
5. D. F. Cadogan, D. T. Sawyer, Anal. Chem.,42, 190 (1970).