Runge, V. (2020). Is a Finite Intersection of Balls Covered by a Finite Union of Balls in Euclidean Spaces? Journal of optimization theory and applications, 187(2), 431-447. https://doi.org/10.1007/s10957-020-01762-2
Chicago Style (17th ed.) CitationRunge, Vincent. "Is a Finite Intersection of Balls Covered by a Finite Union of Balls in Euclidean Spaces?" Journal of Optimization Theory and Applications 187, no. 2 (2020): 431-447. https://doi.org/10.1007/s10957-020-01762-2.
MLA (9th ed.) CitationRunge, Vincent. "Is a Finite Intersection of Balls Covered by a Finite Union of Balls in Euclidean Spaces?" Journal of Optimization Theory and Applications, vol. 187, no. 2, 2020, pp. 431-447, https://doi.org/10.1007/s10957-020-01762-2.
Warning: These citations may not always be 100% accurate.