@article{https://resolver.caltech.edu/CaltechAUTHORS:EINpr31,
    title = "Knowledge of past and future in quantum mechanics",
    journal = "Physical Review",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:EINpr31",
    id = "record",
    issn = "0031-899X",
    doi = "10.1103/PhysRev.37.780",
    volume = "37"
}