Multiple Collision Avoidance between Human Limbs and Robot Links Algorithm in Collaborative Tasks Topics: Human-Robots Interfaces; Industrial Automation and Robotics; Mechatronics Systems; Modeling, Simulation and Architecture; Vision, Recognition and Reconstruction In Proceedings of the 15th International Conference on Informatics in Control, Automation and Robotics - Volume 2: ICINCO, 291-298, 2018 , Porto, Portugal