@misc{W2033666272,
  author = {Bernard Yurke and Samuel L. McCall and John R. Klauder},
  title = {SU(2) and SU(1,1) interferometers},
  year = {1986},
  howpublished = {Physical Review A},
  doi = {https://doi.org/10.1103/physreva.33.4033}
}