TY  - BOOK
AU  - Ekeland Ivar
TI  - Mathematics and the unexpected
SN  - 0-226-19990-8
U1  - 514.7 
PY  - 1990///
CY  - Chicago
PB  - Univ of Chicago Press
KW  - Catastrophes(Mathematics)
N1  - Foreword by Felix E Browder
ER  -