Configuration selection for a 450-passenger ultraefficient 2020 aircraftD. Paulus, T. Salmon, B. Mohr, C. Roessler, Ӧ. Petersson, F. Stroscher, H. Baier and M. HornungEUCASS Proceedings Series – Advances in AeroSpace Sciences, 6 (2013) 601-618DOI: https://doi.org/10.1051/eucass/201306601