Enhancing Spatial Debris Material Classifying through a Hierarchical Clustering-Fuzzy C-Means Integration Approach. - Guo, Fengqi; Zhu, Jingping; Huang, Liqing; Li, Haoxiang; Deng, Jinxin; Jiang, Huilin; Hou, Xun (Applied Sciences (2076-3417), 2023)