1. Bill and Al’s excellent adventure: forecasting the 1996 presidential election;Abramowitz,2000
2. Evaluating forecasts and forecasting models of the 1996 presidential election;Beck,2000
3. British Political Facts 1900-1994;Butler,1994
4. The science of forecasting presidential elections;Campbell,2000
5. Before the Vote: Forecasting American National Elections;Campbell,2000