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December 15, 2023
  1. Nicolov, N.N., G. Ignatov, E.V. Soultanova. Ultrastructural study of
    the nuclear reproduction in Scenedesmus acutus. Compt. rend. Acad.
    bulg. Sci., 39, 113—115, 1986.
  2. Nicolov, N.N., K. Hristov, L. Hristeva, I.A. Ivanova. Changes in the
    quantity of DNA at certain hours of the life cycle of Scenedesmus
    acutus.     Compt. rend. Acad. bulg. Sci., 40, 115—117, 1987.
  3. Nicolov N.N., N.N. Tuituilkov, K.N. Ivanova, Ch.K. Velev. Experimental
    mutagenesis in unicellular green algae. V. Correlation between
    charasteristics of the elementary structure of molecules of N-
    nitrosocontaining supermutagens and their mutagenic activity in
    Scenedesmus acutus (in Russian). Genetica, 12, 162—166, 1976.
  4. Nikolov, T.G. The Long Path of Life. Publ. BAS, Sofia, 1994. (In Bulgarian:
    Николов, Т.Г. Дългият път на живота. Изд. БАН, София, 1994).
  5. Nilova, V.K., K.M. Sukhanova. Synthesis of nucleic acids in Opalina
    ranarum.     Nature, 204, 459—460, 1964.
  6. Nirenberg, M.W., J.H. Matthaei. The dependence of cell-free protein
    synthesis in Escherichia coli upon naturally occurring or synthetic
    polyribonucleotides. Proc. Nat. Acad. Sci. USA, 47, 1588—1602, 1961.
  7. Normile, D. Impact of DNA replication errors put to the test. Science,
    272, 816—817, 1996.
  8. North, G. Cell cycle. Starting and stopping. Nature, 351, 604—605,
    1991.
  9. Oftebro, R., I. Wolf. Mitosis of bi- and multinucleate HeLa cells. Exp.
    Cell Res., 48, 39—52, 1967.
  10. Olins, A.L., D.E. Olins. Spheroid chromatin units (ν-bodies). Science,
    183, 330—332, 1974.
  11. Oparin, A.I. The Origin of Life. Publ. “Moskovskii rabochii”, Moskow,
    (In Russian: Опарин, А.И. Происхождение жизни. Изд.
    “Московский рабочий”, Москва, 1924).
  12. Oparin, A.I. The Origin of Life on the Earth. Publ. AN USSR, 1936. (In
    Russian: Опарин, А.И. Возникновение жизни на Земле. Изд. АН
    СССР, Москва, 1936).
  13. Oparin, A.I. The Origin of Life, Translation of Russian Edition 1936.
    Macmillan, London, 1938.
  14. Oparin, A.I. The Origin of Life on the Earth. Publ. Nauka, Moskow,
  15. (In Russian: Опарин, А.И. Возникновение жизни на Земле.
    Изд. “Наука”, Москва, 1957).
  16. Oparin, A.I. Life, its Nature, Origination and Development. Publ. AN
    USSR, Moskow, 1960. (In Russian: Опарин, А.И. Жизнь, ее природа,
    происхождение и развитие. Изд. АН СССР, Москва, 1960).
  17. Oparin, A.I. Life as a Form of Matter Development. Publ. AN USSR,
    Moskow, 1963. (In Russian: Опарин, А.И. Жизнь, как форма
    движение материи. Изд. АН СССР, Москва, , 1963).