Lu, Yung-Chen, 1938- Singularity theory and an introduction to catastrophe theory / Yung-chen Lu. - New York : Springer-Verlag, 1976. - xii, 199 p. : ill. ; 24 cm. - Universitet . - 514/.7 . Includes index. Bibliogr.: p. [192]-196. ISBN: 038790221X Subjects--Topical Terms: Differentiable mappingsSingularities (Mathematics)Catastrophes (Mathematics) Dewey Class. No.: 514/.7