Inelastic neutron scattering study and Hubbard model description of the antiferromagnetic tetrahedral molecule Ni4Mo12J. Nehrkorn, M. Höck, M. Brüger, H. Mutka, J. Schnack and O. WaldmannEur. Phys. J. B, 73 4 (2010) 515-526DOI: https://doi.org/10.1140/epjb/e2010-00028-3