@article{weko_59727_1,
   author	 = "Hiroshi,Matsuno and Katsushi,Inoue and Itsuo,Takanami",
   title	 = "Closure Properties of Alternating One-Way Multihead Finite Automata with Constant Leaf-Sizes",
   journal	 = "Journal of Information Processing ",
   year 	 = "1991",
   volume	 = "13",
   number	 = "4",
   pages	 = "477--485",
   month	 = "feb"
}