中国科学院数学与系统科学研究院期刊网
ITERATIVE ILU PRECONDITIONERS FOR LINEAR SYSTEMS AND EIGENPROBLEMS
Daniele Boffi, Zhongjie Lu, Luca F. Pavarino
Journal of Computational Mathematics . 2021, (4): 633 -654 .  DOI: 10.4208/jcm.2009-m2020-0138