共 20 条
- [2] [Anonymous], 2010, RECENT ADV GEOMETRIC
- [3] [Anonymous], 2006, GRADUATE STUDIES MAT
- [5] Cerbo L.F.D., 2008, LETT MATH PHYS, V83, P13
- [6] Chen B.Y., 2015, Balkan J. Geom. Appl., V20, P14
- [7] Chen BL, 2009, J DIFFER GEOM, V82, P363
- [8] CHENG SY, 1980, P 1980 BEIJ S DIFF G, V1, P339