Sanchez, D. A. (1979). Ordinary differential equations and stability theory: An introduction. New York: Dover publications, Inc..
Παραπομπή Chicago StyleSanchez, David A. Ordinary Differential Equations and Stability Theory: An Introduction. New York: Dover publications, Inc., 1979.
Παραπομπή MLASanchez, David A. Ordinary Differential Equations and Stability Theory: An Introduction. New York: Dover publications, Inc., 1979.
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