Skinner, L. A. (2011). Singular perturbation theory. Springer New York.
Lua i Stíl Chicago (17ú heag.)Skinner, Lindsay A. Singular Perturbation Theory. New York, New York: Springer New York, 2011.
Lua MLA (9ú heag.)Skinner, Lindsay A. Singular Perturbation Theory. Springer New York, 2011.
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