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The geometry of non-linear differential equations, Bäcklund transformations, and solutions. Part A. (English) Zbl 0367.35001
Interdisciplinary Mathematics. Vol. XII. Brookline, Massachusetts: Math. Sci. Press. XII, 313 p. (1976).

35-02 Research exposition (monographs, survey articles) pertaining to partial differential equations
35A30 Geometric theory, characteristics, transformations in context of PDEs
35A22 Transform methods (e.g., integral transforms) applied to PDEs
35G20 Nonlinear higher-order PDEs
58A15 Exterior differential systems (Cartan theory)