a-practical-method-for.pdf [http://citeseer.nj.nec.com/rd/0%2C97550%2C1%2C0.25%2CDownload/http%253A%252F%252Fciteseer.nj.nec.com/cache/papers/cs/3322/ftp%25253AzSzzSzftp.mi.uni-koeln.dezSzpubzSzpaperzSzzpr94-158.pdf/a-practical-method-for.pdf]
fortune92voronoi.pdf [http://citeseer.nj.nec.com/rd/86738079%2C249311%2C1%2C0.25%2CDownload/http%253A%252F%252Fciteseer.nj.nec.com/cache/papers/cs/11859/http%253AzSzzSzcm.bell-labs.comzSzcmzSzcszSzwhozSzsjfzSzvddt.pdf/fortune92voronoi.pdf]
p49-guibas.pdf [http://delivery.acm.org/10.1145/810000/803395/p49-guibas.pdf?key1=803395&key2=593308&ts=1006251452&CFID=756767&CFTOKEN=25809232]
p74-guibas.pdf [http://delivery.acm.org/10.1145/290000/282923/p74-guibas.pdf?key1=282923&key2=329282&ts=1006251029&CFID=756767&CFTOKEN=25809232]