中国科学院数学与系统科学研究院期刊网
On Homological Dimensions of Rings and Residue Rings
Xiao Sheng ZHU(1),Jing Hua YAN
Acta Mathematica Sinica, Chinese Series . 2001, (5): 777 -784 .  DOI: 10.12386/A2001sxxb0100