Four-nucleon force contribution to the binding energy of 4HeA. Nogga, D. Rozpędzik, E. Epelbaum, W. Glöckle, J. Golak, H. Kamada, R. Skibiński and H. WitałaEPJ Web of Conferences, 3 (2010) 05006DOI: https://doi.org/10.1051/epjconf/20100305006