Literature cited
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É. I. Klyamko, “Some applications of the method of Shaplygin to the approximate solution of differential equations with a retarded argument,” Uspekhi Matem. Nauk,12, No. 4 (76) (1957).
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Yu. I. Kovach, “On the question of the approximate solution of a system of ordinary differential equations of arbitrary order by a two-sided method,” Ukrainsk. Matem. Zh.,19, No. 2 (1967).
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Translated from Ukrainskii Matematicheskii Zhurnal, Vol. 22, No. 3, pp. 380–388, May–June, 1970.
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Kovach, Y.I. On the approximate solution of a nonlinear system of differential equations of higher order with a retarded argument. Ukr Math J 22, 332–339 (1970). https://doi.org/10.1007/BF01088956
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DOI: https://doi.org/10.1007/BF01088956