     <li>
          Franz Aurenhammer,<br>
          Voronoi diagrams - 
          a study of a fundamental geometric data structure,<br>
          ACM Computing Surveys,<br>
          Volume 23, Number 3, September 1991, pages 345-405.
        </li>
        <li>
          Paul Bratley, Bennett Fox, Linus Schrage,<br>
          A Guide to Simulation,<br>
          Second Edition,<br>
          Springer, 1987,<br>
          ISBN: 0387964673.
        </li>
        <li>
          John Burkardt, Max Gunzburger,