On cooperation architectures of multiple unmanned aerial vehicles 并列题名：On cooperation architectures of multiple unmanned aerial vehicles Cooperative path planning of unmanned aerial vehicles 并列题名：Cooperative path planning and formation control of multiple unmanned aerial vehicles Cooperative path planning and formation control of multiple unmanned aerial vehicles practical methods for small unmanned aerial vehicles Airspace conflict resolution of unmanned aerial vehicles 并列题名：Cooperative path planning of unmanned aerial vehicles Cooperative control theory and practice for multiple unmanned surface vehicles Propulsion and power systems for unmanned aerial vehicles