Search Results Use the search box below to revise your search, or start a new search. Studies (2) Variables Publications Your query returned 2 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. Conflict and Peace Data Bank (COPDAB), 1948-1978 (ICPSR 7767) Azar, Edward E. 2. Dimensions of Interaction, 1948-1973 (ICPSR 7426) Azar, Edward E.; Sloan, Thomas J.