1. N. M. Akhmedkhodzhaeva, Phytochemical Study of the Mature Orange, Cultivated in Uzbekistan: Dissertation for the Degree of Candidate of Pharmaceutical Sciences [in Russian], Tashkent (1972).
2. N. M. Akhmedkhodzhaeva and G. K. Nikonov, Khim. Prir. Soedin., No. 3, 304–306 (1970).
3. S. N. Burnashova and G. K. Nikonov, ibid., No. 5, 316–317 (1968).
4. A. A. Vereninov and I. I. Marekhova, Ion Transport in Cells in Culture [in Russian], Leningrad (1986), p. 291.
5. E. V. Vul'f and O. V. Maleev, World Resources of Useful Plants: A Handbook [in Russian], Leningrad (1969), p. 127.