1. Lapin, A.A., Karmanov, A.P., Borisenkov, M.F., and Kocheva, L.S., in Problemy gerontologii i geriatrii-2004: Meterialy 2-i nauchno-prakticheskoi konferentsii s mezhdunarodnym uchastiem (Problems of Gerontology and Geriatrics-2004: Proc. 2nd Scientific and Practical Conf. with Foreign Participants), Syktyvkar, 2004, pp. 73–75.
2. Anasimov, V.N., Molekulyarnye i fiziologicheskie mekhanizmy stareniya (Molecular and Physiological Mechanisms of Aging), St. Petersburg: Nauka, 2003.
3. Khavinson, V.Kh., Barinov, V.A., Arutyunyan, A.V., and Malinin, V.V. Svobodnoradikal'noe okislenie i starenie (Free-Radical Oxidation and Aging), St. Petersburg: Nauka, 2003.
4. Pepper, J.M., Baylis, P.E., and Adler, E., Can. J. Chem., 1959, vol. 37, no.8, pp. 1241–1245.
5. Zakis, G.F., Mozheiko, L.N., and Telysheva, G.M., Metody opredeleniya funktsional'nykh grupp lignina (Methods for Determination of Functional Groups of Lignin), Riga: Zinatne, 1975.