TY - JOUR A1 - Roberts, M.E. A1 - Stewart, B.M. A1 - Tingley, D. A1 - Lucas, C. A1 - Leder-Luis, J. A1 - Gadarian, S.K. A1 - Albertson, B. A1 - Rand, D.G. T1 - Structural topic models for open-ended survey responses Y1 - 2014 DO - 10.1111/ajps.12103 JF - American Journal of Political Science VL - 58 IS - 4 ER -