Metropolis II: Investigating the Future Shape of Air Traffic Control in Highly Dense Urban Airspace - Patrinopoulou, N.; Daramouskas, I.; Lappas, V.; Kostopoulos, V.; Morfin Veytia, A.; Badea, C.A.; Ellerbroek, J.; Hoekstra, J.; Vries, V.J.F. de; Ham, J.M. van; Sunil, E.; Menéndez-Ponte Alonso, P.; et al. (IEEE, 2022)