de Jong, J.

• Vol 8, No 3 (1984) - Articles
  The "Convex-Combination Approach": a Geometric Approach to the Optimization of Sailplane Trajectories
  Abstract  PDF
• Vol 6, No 4 (1981) - Articles
  OPTIMAL-RANGE-VELOCITY-POLAR: A NEW THEORETICAL TOOL FOR THE OPTIMIZATION OF SAILPLANE FLIGHT TRAJECTORIES
  Abstract  PDF