Johnson, E.;Fricke, B.;Jacob, T.;Dong, C. Z.;Fritzsche, S.;Pershina, V.«Ionization potentials and radii of neutral and ionized species of elements 107 (bohrium) and 108 (hassium) from extended multiconfiguration Dirac–Fock calculations».The Journal of Chemical Physics,116,2002,p.1862. Bibcode: 2002JChPh.116.1862J. DOI: 10.1063/1.1430256.
Johnson, E.;Fricke, B.;Jacob, T.;Dong, C. Z.;Fritzsche, S.;Pershina, V.«Ionization potentials and radii of neutral and ionized species of elements 107 (bohrium) and 108 (hassium) from extended multiconfiguration Dirac–Fock calculations».The Journal of Chemical Physics,116,2002,p.1862. Bibcode: 2002JChPh.116.1862J. DOI: 10.1063/1.1430256.