@article{weko_60274_1,
   author	 = "Keiichi,Abe and Teruo,Fukumura",
   title	 = "An Algorithm to Solve Minimal Cover Problems",
   journal	 = "Information Processing in Japan",
   year 	 = "1969",
   volume	 = "9",
   number	 = "0",
   pages	 = "91--95",
   month	 = "jan"
}