<h1>Hartle, James B.</h1> <h2>Book Chapter from <a href="https://authors.library.caltech.edu">CaltechAUTHORS</a></h2> <ul> <li>Gell-Mann, Murray and Hartle, James B., el al. (1992) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20150925-080151142">Time Symmetry and Asymmetry in Quantum Mechanics and Quantum Cosmology</a>; ISBN 9781560720737; Sakharov Memorial Lectures in Physics; 1151-1174; <a href="https://doi.org/10.48550/arXiv.9304023">10.48550/arXiv.9304023</a></li> </ul>