TY  - BOOK
AU  - Lasalle Joseph
AU  -  Lefschetz Solomon
TI  - Stability by Liapunov's direct method with applica
T2  - Mathematics in Science and Engineering a Series of Monographs and Text Books Ed by Richard Bellman.4
U1  - B7:3, K1 
PY  - 1961///
CY  - New York
PB  - Academic         
KW  - Optimization
N1  - Bibliography: P 131-132
ER  -