References

The following is a list of resources that you can consider to get further knowledge:

• Granovetter, M. S. (1977). The strength of weak ties. In Social networks. Academic Press.
• Moreno, J. L., & Jennings, H. H. (1934). Who Shall Survive? Nervous and Mental Disease.
• Travers, J., & Milgram, S. (1967). The small world problem. Psychology Today, 1(1).
• Watts, D. J., & Strogatz, S. H. (1998). Collective dynamics of ‘small-world’ networks. Nature, 393(6684).
• Zachary, W. W. (1977). An information flow model for conflict and fission in small groups. Journal of anthropological research, 33(4).