1. T. P. Zhuze, Compressed Gases as Solvents (Nauka, Moscow, 1974) [in Russian].
2. G. Brunner and P. Siegfried, Chem. Ing. Tech. 53, 529 (1981).
3. G. I. Kas’yanov, A. V. Pekhov, and A. A. Taran, CO 2 Extracts as Natural Food Aromatizers (Pishchev. Promyshl., Moscow, 1978) [in Russian].
4. E. Stahl, K. W. Quirin, and D. Gerard, Verdichtete Gase Zur Extraxtion und Raffination (Springer, Berlin, Heidelberg, New York, London, Paris, Tokio, 1987).
5. V. M. Banashek and Zh. M. Sapegina, Extraction of Lipids from Vegetable Raw by Liquefied and Compressed Gases, VNIITEIagroprom, AgroNIITEIPP, Ser. 21: Perfumery and Cosmetic Industry (Moscow, 1987), No. 3, p. 1 [in Russian].