Feshchenko, S. F., Shkil', N. I., & Nikolenko, L. D. (1967). Asymptotic methods in the theory of linear differential equations. New York: American Elsevier Publishing.
Citación estilo ChicagoFeshchenko, S. F., N. I. Shkil', and L. D. Nikolenko. Asymptotic Methods in the Theory of Linear Differential Equations. New York: American Elsevier Publishing, 1967.
Cita MLAFeshchenko, S. F., N. I. Shkil', and L. D. Nikolenko. Asymptotic Methods in the Theory of Linear Differential Equations. New York: American Elsevier Publishing, 1967.
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