计算约简的差别矩阵简化算法不成立
庞彦军;刘开第
The Simplify Algorithm of Calculating the Reduced Differential Matrix Is Untenable
Yan Jun PANG;Kai Di LIU
系统工程理论与实践 . 2004, (2): 142 -144 .  DOI: 10.12011/1000-6788(2004)2-142