@inbook{7119,
  author = {J. Eberly},
  title = {Unified View of Spontaneous Emission in Several Theories of Radiation},
  year = {1980},
  pages = {23-35},
  publisher = {Springer US},
  address = {Boston, MA},
  isbn = {978-1-4757-0673-4},
  doi = {10.1007/978-1-4757-0671-0_2},
}