Search Results Use the search box below to revise your search, or start a new search. Studies (1) Variables Publications Your query returned 1 studies. Series results are grouped under the most relevant study. Ungroup series results to view all results. Sort by: Title A-Z Released/Updated Time Period Most Cited in ICPSR Bib. 1. Incidence and Timing of PAC Contributions to Incumbent U.S. House Members, 1993-1994 (ICPSR 1311) Box-Steffensmeier, Janet M.; Radcliffe, Peter M.; Bartels, Brandon L.