@article{weko_142069_1,
   author	 = "Michael,Lampis and Valia,Mitsou and Karolina,Soltys",
   title	 = "Scrabble is PSPACE-Complete",
   journal	 = "情報処理学会論文誌",
   year 	 = "2015",
   volume	 = "56",
   number	 = "5",
   month	 = "may"
}