1. The People’S Choice - How the Voter Makes Up His Mind in a Presidential Campaign;Lazarsfeld,1968
2. Personal influence: The part played by people in the flow of mass communication;Katz,1955
3. A field test of a modified two-step flow of communication model;Troldahl;Public Opin. Q.,1966
4. Measuring power and satisfaction in societies with opinion leaders: dictator and opinion leader properties;van den Brink;Homo Oeconomicus,2011
5. Theory of Games and Economic Behavior;von Neumann,1944