Realistic theory of electronic correlations in nanoscopic systems Malte Schüler, Stefan Barthel, Tim Wehling, Michael Karolak, Angelo Valli and Giorgio Sangiovanni Eur. Phys. J. Special Topics, 226 11 (2017) 2615-2640 Published online: 10 July 2017 DOI: 10.1140/epjst/e2017-70049-3