Lebo, M. J., & Norpoth, H. (2007). The PM and the pendulum: Dynamic forecasting of British elections. British Journal of Political Science.
Chicago-viite (17. p.)Lebo, Matthew J., ja Helmut Norpoth. "The PM and the Pendulum: Dynamic Forecasting of British Elections." British Journal of Political Science 2007.
MLA-viite (9. p.)Lebo, Matthew J., ja Helmut Norpoth. "The PM and the Pendulum: Dynamic Forecasting of British Elections." British Journal of Political Science, 2007.
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