共 4 条
- [1] Baker Wayne E.Three-dimensional block models. Journalof Mathematical Sociology . 1986
- [2] Fink Steven.Crisis management:planning for the invisible. . 1986
- [3] Barabasi A.L,Albert R.Emergence of scaling in random net-works. Science . 1999
- [4] Granovetter Mark.The strength of weak ties. American Jour-nal of Sociology . 1973