@inproceedings{weko_171128_1,
   author	 = "Qusai,Abuein and 渋沢,進",
   title	 = "New hash chain for signature amortization schemes",
   booktitle	 = "第67回全国大会講演論文集",
   year 	 = "2005",
   volume	 = "2005",
   number	 = "1",
   pages	 = "341--342",
   month	 = "mar"
}