TY  - BOOK
AU  - Troutman,J.L
TI  - Variational calculus & optimal control: optimization with elementary convexity
T2  - Undergraduate texts in mathematics
SN  - 0-387-94511-3
U1  - 4.13+15.04 
PY  - 1996///
CY  - New York
PB  - Springer
ER  -