TY  - JOUR
T1  - Asymmetry in the political system: Occasional activists in the Republican and Democratic parties, 1956-1964
AU  - Nexon, David
PY  - 1971
SP  - 716
EP  - 730
JO  - American Political Science Review
VL  - 65
IS  - 3
SN  - 0003-0554
UR  - http://www.jstor.org/stable/1955516
ER  -