@other{https://resolver.caltech.edu/CaltechTHESIS:07052012-191337554,
    title = "Clustering Affine Subspaces: Algorithms and Hardness",
    url = "https://resolver.caltech.edu/CaltechTHESIS:07052012-191337554",
    id = "record",
    doi = "10.7907/VF38-NT60"
}