@article{6143,
  author = {R. Walser},
  title = {Measuring the State of a Bosonic Two-Mode Quantum Field},
  year = {1997},
  journal = {Physical Review Letters},
  volume = {79},
  pages = {4724-4727},
  month = {Jan-12-1997},
  issn = {0031-9007},
  url = {http://link.aps.org/doi/10.1103/PhysRevLett.79.4724},
  doi = {10.1103/PhysRevLett.79.4724},
}