@article{https://resolver.caltech.edu/CaltechAUTHORS:MESpnas57,
    title = "Equilibrium sedimentation of macromolecules in density gradients",
    journal = "Proceedings of the National Academy of Sciences of the United States of America",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:MESpnas57",
    id = "record",
    issn = "0027-8424",
    volume = "43"
}