Dynkin graphs and quadrilateral singularities. (English)
Lecture Notes in Mathematics. 1548. Berlin: Springer-Verlag. vi, 233 p. DM 52.00 (1993).
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Deformations of triangular and quadrilateral singularities of embedding dimension three. (Deformationen von Dreiecks- und Viereckssingularitäten der Einbettungsdimension drei.) (German)
Bonner Mathematische Schriften. 237. Bonn: Univ. Bonn, 201 S. (1992).
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Fundamental theory of the semi-radial singularity mapping with applications to fracture mechanics. (English)
Comput. Methods Appl. Mech. Eng. 26, 53-73 (1981).
3