"study number","owner","title","investigators","doi","time period"
"07288","ICPSR","Norwegian Election Study, 1957","Rokkan, Stein; Valen, Henry","http://dx.doi.org/10.3886/ICPSR07288.v2","1957"
"07239","ICPSR","Organization for Comparative Social Research: Seven Nation Study","Rokkan, Stein","http://dx.doi.org/10.3886/ICPSR07239.v1","1953"