4Davis, James 1967, "Clustering and Structural Balance in Graphs." Human Relations 20.
5Degenne, Alain & Michel Forse 1999, Introducing Social Networks, Sage Publications.
6Marsden, P V 1983, "Restricted Access in Networks and Models of Power." American Journal of Sociology 88.
7Aldrich, Howard 1982, "The Origins and Persistence of Social Networks." in Marsden P V & Nan Lin (eds.) Social Structure and Network Analysis, Sage Publications.
8Barnes, J A 1954, "Class and Committees in a Norwegian Island Parish." Human Relations 7.
10Bearman, P S 1993, Relations into Rhetorics : Local Elite Social Structure in NooColk, England, 1540 - 1640, New Brunswick, N J : Rutgers University Press.
