@article{weko_98176_1,
   author	 = "Chuzo,Iwamoto",
   title	 = "Yosenabe is NP-complete",
   journal	 = "Journal of information processing",
   year 	 = "2014",
   volume	 = "22",
   number	 = "1",
   pages	 = "40--43",
   month	 = "jan"
}