"study number","owner","title","investigators","doi","time period"
"02683","ICPSR","Comparative Study of Electoral Systems, 1996-2001","Sapiro, Virginia; Shively, W. Philips","http://dx.doi.org/10.3886/ICPSR02683.v4","2001"
"03808","ICPSR","Comparative Study of Electoral Systems, 2001-2006","Sapiro, Virginia; Shively, W. Philips","http://dx.doi.org/10.3886/ICPSR03808.v2","2006"
"00038","ICPSR","Data Confrontation Seminar, 1969:  Comparative Socio-Political Data ","Inter-university Consortium for Political and Social Research","http://dx.doi.org/10.3886/ICPSR00038.v1","1969"
"00042","ICPSR","German Weimar Republic Data, 1919-1933","Inter-university Consortium for Political and Social Research","http://dx.doi.org/10.3886/ICPSR00042.v1","1933"