中国科学院数学与系统科学研究院期刊网
SIMPLIFIED FINITE PIVOTING PROCESSES IN THE REDUCED GRADIENT ALGORITHM
Du Ding-zhu, Sun Jie, Song Tian-tai
Acta Mathematicae Applicatae Sinica . 1984, (2): 142 -146 .  DOI: 10.12387/C1984018