Lasalle, J. P., & Lefschetz, S. (1963). International symposium on nonlinear differential equations and nonlinear mechanics ([1st ed.].). Academic Press.
Citace podle Chicago (17th ed.)Lasalle, Joseph P., a Solomon Lefschetz. International Symposium on Nonlinear Differential Equations and Nonlinear Mechanics. [1st ed.]. New York: Academic Press, 1963.
Citace podle MLA (9th ed.)Lasalle, Joseph P., a Solomon Lefschetz. International Symposium on Nonlinear Differential Equations and Nonlinear Mechanics. [1st ed.]. Academic Press, 1963.
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