TY  - RPRT
TI  - A finite element based method for solution of optimal control problems
AU  - Bless, Robert R.
AU  - Hodges, Dewey H.
AU  - Calise, Anthony J.
PY  - 1989
UR  - https://ntrs.nasa.gov/citations/19900013711
ID  - 19900013711
ER  -