"study number","owner","title","investigators","doi","time period"
"07767","ICPSR","Conflict and Peace Data Bank (COPDAB), 1948-1978","Azar, Edward E.","http://dx.doi.org/10.3886/ICPSR07767.v4","1978"
"07426","ICPSR","Dimensions of Interaction, 1948-1973","Azar, Edward E.; Sloan, Thomas J.","http://dx.doi.org/10.3886/ICPSR07426.v1","1973"