@inproceedings{1055954,
    title = "Quasiprobability distributions in quantum optics",
    author = "Milburn, G. J. (Gerard J.) and Walls, D. F.",
    year = "1989",
    pages = "289-299",
    publisher = "Kluwer Academic Publications",
    booktitle = "The concept of probability: proceedings of the Delphi Conference"
}