@article{11493,
  author = {Ludwig Oster},
  title = {Stimulated Compton effect and quasi-stellar objects},
  year = {1968},
  journal = {Astrophysics and Space Science},
  volume = {2},
  pages = {438-447},
  month = {Jan-12-1968},
  issn = {0004-640X},
  doi = {10.1007/BF02175920},
}