Copy and paste this link:
http://journals.cambridge.org/action/displayAbstract?aid=1028204
Copy and paste this citation
SANFORD C. GORDON,
GREGORY A. HUBER
and DIMITRI LANDA
(2007).
Challenger Entry and Voter Learning. American Political Science Review, 101
,
pp 303-320
doi:10.1017/S0003055407070165