共 50 条
- [24] The Number of Directions Determined by Points in the Three-Dimensional Euclidean Space Discrete & Computational Geometry, 2002, 28 : 491 - 494
- [25] Realization of the three-dimensional quantum Euclidean space by differential operators EUROPEAN PHYSICAL JOURNAL C, 2000, 17 (02): : 353 - 358