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Hermann, Robert.
The geometry of non linear differential equations, Backlund transformations and solitons : Part. B / Robert Hermann.
— Brookline, MA : Math Sci Press, c1977. 336 p. ; cm. — (Interdisciplinary Mathematics ; v. 14)
Título de la cubierta: Geometric Theory of Non-Linear Differential Equations, Bäcklund Transformations and Solitons : Part B.
ISBN 091569218X
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