Marek Bachmann, Johann Götz, and Klaus David, “Technology Levels for VRU Safety Including Wireless Connected Cooperative Approaches,” in 2021 IEEE International Conference on Advanced Networks and Telecommunications Systems (ANTS): W5: AI/Machine Learning Enabled Connected Vehicles (ANTS’21 W5 AIMLECV), Hyderabad, India, 13-16. Dec. 2021.