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Lua i Stíl Chicago (17ú heag.)Shchepakina, Elena, Vladimir Sobolev, agus Michael P. Mortell. Singular Perturbations: Introduction to System Order Reduction Methods with Applications. Cham: Springer International Publishing, 2014.
Lua MLA (8ú heag.)Shchepakina, Elena, et al. Singular Perturbations: Introduction to System Order Reduction Methods with Applications. Springer International Publishing, 2014.
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