@techreport{weko_77152_1,
   author	 = "Hiroyuki,Fukui and Akihiro,Nakanishi and Ryuhei,Uehara and Takeaki,Uno and Yushi,Uno",
   title	 = "The Complexity of Free Flood Filling Games",
   year 	 = "2011",
   institution	 = "Japan Advanced Institute of Science and Technology, Japan Advanced Institute of Science and Technology, Japan Advanced Institute of Science and Technology, National Institute of Informatics, Osaka Prefecture University",
   number	 = "7",
   month	 = "aug"
}