@article{755056,
  author = {J Herbst and R Watson},
  title = {Coulomb term U and 5f electron excitation energies for the metals actinium to berkelium},
  year = {1976},
  number = {14},
  month = {1976-10-15 00:10:00},
  publisher = {Physical Review B (Condensed Matter and Materials Physics)},
  language = {en},
}