TY  - BOOK
TI  - Singularities and groups in bifurcation theory 
SN  - 0387909990 (v. 1) | 0387966528 (v. 2)
PY  - 1985///
CY  - New York
PB  - Springer-Verlag
N1  - Vol. 2 co-authored by Ian Stewart
ER  -