Superconductivity of strongly correlated electrons on the honeycomb lattice Artem A. Vladimirov, Dieter Ihle and Nikolay M. Plakida Eur. Phys. J. B, 92 6 (2019) 135 Published online: 24 June 2019 DOI: 10.1140/epjb/e2019-100202-9