@techreport{weko_147210_1,
   author	 = "Katsuhisa,Yamanaka and Takashi,Horiyama and David,Kirkpatrick and Yota,Otachi and Toshiki,Saitoh and Ryuhei,Uehara and Yushi,Uno",
   title	 = "Computational Complexity of Colored Token Swapping Problem",
   year 	 = "2016",
   institution	 = "Iwate University, Saitama University, University of British Columbia, Japan Advanced Institute of Science and Technology, Kobe University, Japan Advanced Institute of Science and Technology, Osaka Prefecture University",
   number	 = "2",
   month	 = "jan"
}