1. Ivlev, A.A. (1992) Distribution of carbon isotopes (13C/12C) in the cell and temporal organization of cellular processes, Bioflzika (russ.) 36, 1078–1087.
2. Sel’kov, Ye. Ye. (1978) Temporal organization of energy metabolism and cell clock, M.N.Kondrashova (ed.) Regulation of Energy Exchange and the Physiological State of the Organism (russ.) Nauka, Moscow, pp. 15-32.
3. Craig, H. (1957) Isotopic standards for carbon and oxygen and corrections for mass-spectrometric analysis of carbon dioxide,. Geochim. et Cosmochim.Acta 12, 133-149.
4. Degens, E.T. (1969) Biogeochemistry of stable carbon isotopes, G.Englinton and M.T.J.Murphy, (eds.) Organic geochemistry. Method and results. Springer-Verlag, Berlin, Heidelberg, New York, pp.304-330.
5. Abelson, P.H., and Hoering, T.C. (1961) Carbon isotope fractionation in formation of amino acids by photosynthetic organisms, Proc. Natl. Acad.Sci. USA 47, 623–631.