Friedrichs, Stephan Algorithms and Complexity, MPI for Informatics, Max Planck Society;
http://eurocg15.fri.uni-lj.si/pub/eurocg15-book-of-abstracts.pdf (Preprint)
Friedrichs, S., Hemmer, M., & Schmidt, C. (2015). Exact solutions for the continuous 1.5D Terrain Guarding Problem. In EuroCG 2015 (pp. 212-215). Retrieved from http://eurocg15.fri.uni-lj.si/.