@book{UBHD-1041423, author={Lu, Yung-Chen}, title={Singularity theory and an introduction to catastrophe theory}, publisher={Springer}, address={New York [u.a.]}, year={1976}, pages={XII, 199 S.}, language={eng}, isbn={0-387-90221-X and 3-540-90221-X and 978-3-540-90221-8 and 978-0-387-90221-0}, series={Universitext}, library={MA [Signatur: Lu HB]}, }