@inbook{https://resolver.caltech.edu/CaltechAUTHORS:20150925-080151142, title = "Sakharov Memorial Lectures in Physics", chapter = "Time Symmetry and Asymmetry in Quantum Mechanics and Quantum Cosmology", year = "1992", url = "https://resolver.caltech.edu/CaltechAUTHORS:20150925-080151142", id = "record", isbn = "9781560720737", doi = "10.48550/arXiv.9304023" }