@article{weko_10511_1,
   author	 = "Yumiko,Murakami and Masaki,Nakanishi and Shigeru,Yamashita and Katsumasa,Watanabe",
   title	 = "Quantum versus Classical Pushdown Automata in Exact Computation",
   journal	 = "情報処理学会論文誌",
   year 	 = "2005",
   volume	 = "46",
   number	 = "10",
   pages	 = "2471--2480",
   month	 = "oct"
}