中国科学院数学与系统科学研究院期刊网
PROBLEMS AND IMPROVEMENTS TO THE INCOMPLETE CHOLESKY DECOMPOSITION WITH THRESHOLDS
吴建平,王正华,李晓梅
Journal of Numerical Methods and Computer Applications . 2003, (3): 207 -214 .  DOI: 10.12288/szjs.2003.3.207