@article{b-ccps-03,
author = {Sergei Bespamyatnikh},
title = {Computing Closest Points for Segments},
journal = {Int. J. Comput. Geom. Appl.},
year = {2003},
volume = {13},
number = {5},
pages = {419--438},
url = {http://www.worldscinet.com/ijcga/13/1305/S0218195903001268.html}
}