@article{weko_60255_1,
   author	 = "Hidetaka,Kamiuchi",
   title	 = "About the Three-Dimensional Hidden-Line Problem",
   journal	 = "Information Processing in Japan",
   year 	 = "1970",
   volume	 = "10",
   number	 = "0",
   pages	 = "81--89",
   month	 = "jan"
}