TY  - JOUR
T1  - Incumbent popularity, challenger invisibility, and congressional voters
AU  - Ragsdale, Lyn
PY  - 1981
SP  - 201
EP  - 218
JO  - Legislative Studies Quarterly
VL  - 6
IS  - 2
SN  - 0362-9805
UR  - http://www.jstor.org/stable/439645
ER  -