I. Chen

Minimum altitude‐loss soaring in a sinusoidal vertical wind distribution

Bion L. Pierson, Imao Chen, B. Pierson, 1980 .

Minimum Landing-Approach Distance for a Sailplane

Bion L. Pierson, Imao Chen, B. Pierson, 1979 .

Trajectory optimization for some sailplane performance problems

Imao Chen, I. Chen, 1978 .