Lenhof, Hans-Peter Algorithms and Complexity, MPI for Informatics, Max Planck Society;
Smid, Michiel Algorithms and Complexity, MPI for Informatics, Max Planck Society;
https://rdcu.be/dtA30 (Publisher version)
Lenhof, H.-P., & Smid, M. (1992). Maintaining the visibility map of spheres while moving the viewpoint on a circle at infinity. In O. Nurmi, & E. Ukkonen (Eds.), Algorithms Theory - SWAT'92: Third Scandinavian Workshop on Algorithm Theory (pp. 388-398). Berlin, Germany: Springer.