@techreport{weko_31718_1, author = "菊地,洋右 and 中野,眞一", title = "集合の被覆の列挙", year = "2006", institution = "津山工業高等専門学校情報工学科, 群馬大学工学部情報工学科", number = "100(2006-AL-108)", month = "sep" }