Reconstruction of the quantum state of multimode light.

@article{Kuehn1995ReconstructionOT,
  title={Reconstruction of the quantum state of multimode light.},
  author={Kuehn and Welsch and Gernot Vogel},
  journal={Physical review. A, Atomic, molecular, and optical physics},
  year={1995},
  volume={51 5},
  pages={
          4240-4249
        }
}