AgaShaWel-SCG-97

@inproceedings{AgaShaWel-SCG-97,
title = {The discrete 2-center problem},
author = {Pankaj Kumar Agarwal and Micha Sharir and Emo Welzl},
booktitle = {Proc. 13th Symp. Computational Geometry},
publisher = {ACM},
pages = {147--155},
month = {Jun},
year = {1997}}