Halanay, A., & Bellman, R. (1966). Differential equations: Stability, oscillations, time lags. Academic press.
Style de citation Chicago (17e éd.)Halanay, Aristide, et R. Bellman. Differential Equations: Stability, Oscillations, Time Lags. New York: Academic press, 1966.
Style de citation MLA (8e éd.)Halanay, Aristide, et R. Bellman. Differential Equations: Stability, Oscillations, Time Lags. Academic press, 1966.
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