C. Hargraves

DIRECT TRAJECTORY OPTIMIZATION USING NONLINEAR PROGRAMMING AND COLLOCATION

C. Hargraves, S. Paris, 1987 .

Numerical Computation of Optimal Atmospheric Trajectories

C. Hargraves, S. Paris, F. Johnson, 1981 .

DIRECT TRAJECTORY OPTIMIZATION USING NONLINEAR PROGRAMMING AND COLLOCATION

C. R. Hargraves, S. W. Paris, C. Hargraves, 1986 .

Optimal multiple vehicle trajectories

C. R. Hargraves, Steve Paris, C. Hargraves, 1990 .