@inproceedings{b-oacpm-95
, author = {Sergei N. Bespamyatnikh}
, title = {An Optimal Algorithm for Closest Pair Maintenance}
, booktitle = {Proc. 11th Annu. ACM Sympos. Comput. Geom.}
, year = {1995}
, pages = {152--161}
, url = {http://doi.acm.org/10.1145/220279.220296}
}