@article{weko_92128_1,
   author	 = "Akihiro,Uejima and Fuhito,Yanagitani and Shohei,Tsukamoto",
   title	 = "The Complexity of Tantrix Match Puzzles with Four Colors",
   journal	 = "情報処理学会論文誌",
   year 	 = "2013",
   volume	 = "54",
   number	 = "5",
   month	 = "may"
}