Reference:
Constructing Optimal Highways (Hee-Kap Ahn, Helmut Alt, Tetsuo Asano, Sang Won Bae, Peter Brass, Otfried Cheong, Christian Knauer, Hyeon-Suk Na, Chan-Su Shin, Alexander Wolff), In Int. J. Found. Comput. Sci., volume 20, 2009.
Bibtex Entry:
@article{journals/ijfcs/Constructing_Optimal_Highways,
author = {Hee-Kap Ahn and
Helmut Alt and
Tetsuo Asano and
Sang Won Bae and
Peter Brass and
Otfried Cheong and
Christian Knauer and
Hyeon-Suk Na and
Chan-Su Shin and
Alexander Wolff},
title = {Constructing Optimal Highways},
journal = {Int. J. Found. Comput. Sci.},
volume = {20},
number = {1},
year = {2009},
pages = {3-23},
doi = {10.1142/S0129054109006425},
urlx = {http://www.ai6.uni-bayreuth.de/uploads/pdf/.pdf}
}