@techreport{weko_66853_1,
   author	 = "AnishManSinghShrestha and Satoshi,Tayu and Shuichi,Ueno",
   title	 = "On Two-Directional Orthogonal Ray Graphs",
   year 	 = "2009",
   institution	 = "Department of Communications and Integrated Systems, Tokyo Institute of Technology, Department of Communications and Integrated Systems, Tokyo Institute of Technology, Department of Communications and Integrated Systems, Tokyo Institute of Technology",
   number	 = "6",
   month	 = "nov"
}