@article{weko_59978_1,
   author	 = "Ichiro,Semba",
   title	 = "A Note on Enumerating Combinations in Lexicographical Order",
   journal	 = "Journal of Information Processing ",
   year 	 = "1981",
   volume	 = "4",
   number	 = "1",
   pages	 = "35--37",
   month	 = "mar"
}