Ambühl, Christoph, and Uli Wagner. “On the Clique Problem in Intersection Graphs of Ellipses.”10.1007/3-540-36136-7_43__Proceedings of the 13th International Symposium on Algorithms and Computation, vol. 2518, Springer, 2002, pp. 489–500, doi:10.1007/3-540-36136-7_43.
LibreCat: https://research-explorer.ista.ac.at/record/2421
DOI: 10.1007/3-540-36136-7_43