中国科学院数学与系统科学研究院期刊网
Graded Stability of Unfoldings of Smooth Map Germs
Guo Bin ZHANG(1),Jian Ming YU(
Acta Mathematica Sinica, Chinese Series . 2001, (4): 713 -726 .  DOI: 10.12386/A2001sxxb0093