@inbook{https://resolver.caltech.edu/CaltechAUTHORS:20180406-080326593,
    title = "Polymers for Second-Order Nonlinear Optics",
    chapter = "Hyperpolarizabilities of Push—Pull Polyenes Molecular Orbital and Valence-Bond Charge-Transfer Models",
    year = "1995",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20180406-080326593",
    id = "record",
    isbn = "9780841232631",
    doi = "10.1021/bk-1995-0601.ch003"
}