@article{weko_95687_1,
   author	 = "Hiro,Ito",
   title	 = "Editor's Message for Special Issue on Mathematics of Puzzles",
   journal	 = "Journal of information processing",
   year 	 = "2013",
   volume	 = "21",
   number	 = "3",
   pages	 = "367--367",
   month	 = "jul"
}