@misc{oai:ir.soken.ac.jp:00004083,
 author = {保國, 惠一 and モリクニ, ケイイチ and MORIKUNI, Keiichi},
 month = {2016-02-26},
 note = {総研大甲第1603号},
 title = {Inner-iteration Preconditioning for Least Squares Problems},
 year = {}
}