M. Dolg, H. Stoll, H. Preuss, and R. M. Pitzer, “Relativistic and correlation-effects for element 105 (Hahnium, Ha) – a comparative-study of M and MO (M = NB, TA, HA) using energy-adjusted ab initio pseudopotentials,” J. Phys. Chem., 97 (1993) 5852-59. DOI: 10.1021/j100124a012
