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Lua i Stíl Chicago (17ú heag.)Horssen, Wilhelm Teunis van. An Asymptotic Analysis of a Class of Nonlinear Hyperbolic Equations. [S.l.: s.n.], 1988.
Lua MLA (8ú heag.)Horssen, Wilhelm Teunis van. An Asymptotic Analysis of a Class of Nonlinear Hyperbolic Equations. s.n.], 1988.
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