@inbook{https://resolver.caltech.edu/CaltechAUTHORS:20131009-110149445, title = "EC '13 Proceedings of the fourteenth ACM conference on Electronic commerce", chapter = "Improved Bounds on the Price of Stability in Network Cost Sharing Games", year = "2013", url = "https://resolver.caltech.edu/CaltechAUTHORS:20131009-110149445", id = "record", isbn = "978-1-4503-1962-1", doi = "10.1145/2482540.2482562" } @inbook{https://resolver.caltech.edu/CaltechAUTHORS:20161121-172931655, title = "Proceedings of the Twenty-Fourth Annual ACM-SIAM Symposium on Discrete Algorithms", chapter = "Clustering affine subspaces: hardness and algorithms", year = "2013", url = "https://resolver.caltech.edu/CaltechAUTHORS:20161121-172931655", id = "record", isbn = "978-1-61197-251-1", doi = "10.1137/1.9781611973105.58" }