@article{7069,
  author = {Charles Jaffé},
  title = {"On the Quantization Condition of Sommerfield and Epstein" by A. Einstein},
  year = {1980},
  number = {116},
  pages = {1-12},
  month = {1980-09-04},
  address = {Boulder, Colorado},
  issn = {116},
  note = {JILA Pub. 2188},
}