1. M. Goryaev and I. Pliva, Methods of Investigating Essential Oils [in Russian], Alma-Ata, 97, 1962; H. Burchfield and E. Storrs, Biochemical Applications of Gas Chromatography [Russian translation], Moscow, 341, 1964.
2. Essential Oils [in Russian], G. V. Pigulevskii (Ed.), Moscow and Leningrad, 1938.
3. G. Valkanas, and N. Iconomou, J. Chromatogr., 12, 536, 1963.
4. E. von Rudloff, Can. J. Chem., 39, 1190, 1961.
5. M. N. Klouwen R. ter Heide, J. Chromatogr., 7, 297, 1962.