TY - RPRT TI - Trajectory Optimization Using Adjoint Method and Chebyshev Polynomial Approximation for Minimizing Fuel Consumption During Climb AU - Nguyen, Nhan T. AU - Hornby, Gregory AU - Ishihara, Abe PY - 2013 UR - https://ntrs.nasa.gov/citations/20140008919 ID - 20140008919 ER -