@article{RafelskiFulcherGreiner2006,
  author    = {Johann Rafelski and Lewis P. Fulcher and Walter Greiner},
  title     = {Superheavy elements and an upper limit to the electric field strength},
  journal   = {Physical review letters},
  volume    = {27},
  number    = {14},
  pages     = {958 -- 961},
  year      = {2006},
}