TY  - BOOK
AU  - Kogan Jacob
TI  - Bifurcation of extremals in optimal control
T2  - Lecture notes in mathematics; 1216
U1  - B28931, M6 
PY  - 1985///
CY  - Berlin
PB  - Springer-Verlag         
N1  - Bibliography 104-105p
ER  -