@article{https://resolver.caltech.edu/CaltechAUTHORS:BANpnas68,
    title = "A Proton Magnetic Resonance Study of The Interaction of Adenosine with Polyuridylic Acid: Evidence for Both Adenine-Uracil Base-Stacking and Base-Pairing",
    journal = "Proceedings of the National Academy of Sciences of the United States of America",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:BANpnas68",
    id = "record",
    issn = "0027-8424",
    volume = "60",
    pmcid = "PMC224893"
}


@article{https://resolver.caltech.edu/CaltechAUTHORS:CHApnas66,
    title = "Purine binding to dinucleotides: Evidence for base stacking and insertion",
    journal = "Proceedings of the National Academy of Sciences of the United States of America",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:CHApnas66",
    id = "record",
    issn = "0027-8424",
    volume = "55",
    pmcid = "PMC224219"
}