@other{https://resolver.caltech.edu/CaltechTHESIS:05302012-170816705,
    title = "4d/2d Correspondence: Instantons and W-Algebras",
    year = "2012",
    url = "https://resolver.caltech.edu/CaltechTHESIS:05302012-170816705",
    id = "record",
    doi = "10.7907/WP20-DX98"
}