Retrieved 12 December 2017. ↑ "ROS on the Move: TurtleBots available for preorder - Willow Garage". www.WillowGarage.com. Retrieved 12 December 2017. ↑ "100 Repositories - ROS robotics news". www.ROS.org. Retrieved 12 December 2017. ↑ "Willow Garage Spins Out OSRF". ↑ "DARPA Awards Simulation Software Contract to Open Source Robotics Foundation". ↑ "Osrf - Ros @ Osrf".