L. Lefton

Interplanetary Trajectory Encke Method /ITEM/ update 12 C program manual

L. Lefton, F. Whitlock, L. Lefton, 1967 .

Estimation of weapon-radius versus maneuverability trade-off for air-to-air combat

L. Lefton, H. J. Kelley, H. Kelley, 1977 .

Item program manual, Fortran IV version

H. Wolf, L. Lefton, N. Levine, 1967 .

Calculation of differential-turning barrier surfaces. [aircraft pair trajectories for evasive maneuvers

L. Lefton, H. J. Kelley, 1976 .