@article{120096,
  author = {V Dzuba and V Flambaum and P Silvestrov and O Sushkov},
  title = {Many-body perturbation-theory calculations in atoms with open shells},
  year = {1991},
  number = {44},
  month = {1991-01-01},
  publisher = {Physical Review A (Atomic, Molecular and Optical Physics)},
  language = {en},
}