rootbrowseIAC-05C1session 55. OptimizationPapers3. A Study on Information Propagation Structure and Formation Maintenance Control4. Quasi-Linear Optimization for Multiple-Spacecraft Clustering5. Trajectory Optimization in Hevelius - Lunar Microsatellite Mission6. Optimal low-thrust trajectories for the impulsive deflection of Near Earth Objects7. Interplanetary Trajectory Optimisation Using Ant Colony Algorithms9. Minimum Fuel Three-Dimensional Trajectories for an Asteroid Explorer