Edelsbrunner, Herbert, János Pach, Jacob Schwartz, and Micha Sharir. “On the Lower Envelope of Bivariate Functions and Its Applications.”https://doi.org/10.1109/SFCS.1987.44__In 28th Annual Symposium on Foundations of Computer Science , 27–37. IEEE, 1987.https://doi.org/10.1109/SFCS.1987.44 .
LibreCat: https://research-explorer.ista.ac.at/record/3514
DOI: 10.1109/SFCS.1987.44