李学敏. Coefficient Conditions of Locally Topological Structure for Nonlinear Homogeneous System in Third Critical Case[J]. 数学季刊, 1993, 8(3): 57-62.
Li Xuemin. Coefficient Conditions of Locally Topological Structure for Nonlinear Homogeneous System in Third Critical Case[J]. Chinese Quarterly Journal of Mathematics, 1993, 8(3): 57-62.