@article{weko_95691_1,
   author	 = "Osamu,Ikawa and Osamu,Shimabukuro",
   title	 = "Square Subgroup of Rubik's Cube Group",
   journal	 = "Journal of information processing",
   year 	 = "2013",
   volume	 = "21",
   number	 = "3",
   pages	 = "398--401",
   month	 = "jul"
}