Qiaoming Han Li-Zhi Liao Houduo Qi Liqun Qi 0001 Stability Analysis of Gradient-Based Neural Networks for Optimization Problems. 363-381 2001 19 J. Glob. Optim. 4 https://doi.org/10.1023/A:1011245911067 db/journals/jgo/jgo19.html#HanLQQ01