Bellman, R., & Cooke, K. L. (1965). Asymptotic behavior of solutions of differential-difference equations. American Mathematical Society.
Lua i Stíl Chicago (17ú heag.)Bellman, Richard, agus Kenneth L. Cooke. Asymptotic Behavior of Solutions of Differential-difference Equations. Providence, R.I: American Mathematical Society, 1965.
Lua MLA (9ú heag.)Bellman, Richard, agus Kenneth L. Cooke. Asymptotic Behavior of Solutions of Differential-difference Equations. American Mathematical Society, 1965.
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