Introduction of symbiotic human-robot-cooperation in the steel sector: an example of social innovationValentina Colla, Antonius Schroeder, Andrea Buzzelli, Dario Abbà, Andrea Faes and Lea RomanielloMatériaux & Techniques, 105 5-6 (2017) 505DOI: https://doi.org/10.1051/mattech/2018017