Suppose we have a finite number of distinct points in the plane. We refer to these points as sites. We wish to partition the plane into disjoint regions called cells, each of which contains exactly one site, so that all other points within a cell are closer to that cell's site than to any other site.
The Mathematics Enthusiast: Vol. 1
, Article 4.
Available at: http://scholarworks.umt.edu/tme/vol1/iss2/4