TY  - BOOK
AU  - Golubitsky Martin
AU  -  Schaeffer David G
AU  -  Stewart Ian
TI  - Singularities and groups in bifurcation theory
T2  - Applied mathematical sciences; 69
U1  - B334, M8 
PY  - 1988///
CY  - New York    
PB  -  Springer Verlag       
KW  - Bifurcation theory
ER  -