Huttenlocher, D. P., Kedem, K., & Šārîr, M. (1991). The upper envelope of Voronoi surfaces and its applications.
Chicago Style (17th ed.) CitationHuttenlocher, Daniel P., Klara Kedem, and Mîkā Šārîr. The Upper Envelope of Voronoi Surfaces and Its Applications. Ithaca, New York, 1991.
MLA (9th ed.) CitationHuttenlocher, Daniel P., et al. The Upper Envelope of Voronoi Surfaces and Its Applications. 1991.
Warning: These citations may not always be 100% accurate.