"study number","owner","title","investigators","doi","time period"
"09959","ICPSR","Historical Analogies, Generational Effects, and Attitudes Toward War in the United States, October 1990-February 1991","Schuman, Howard; Rieger, Cheryl","http://dx.doi.org/10.3886/ICPSR09959.v1","1991"
"07423","RCMD","New Orleans Slave Sale Sample, 1804-1862","Fogel, Robert W.; Engerman, Stanley L.","http://dx.doi.org/10.3886/ICPSR07423.v2","1862"
"07422","ICPSR","Slave Hires, 1775-1865","Fogel, Robert W.; Engerman, Stanley L.","http://dx.doi.org/10.3886/ICPSR07422.v3","1865"
"07421","ICPSR","Slave Sales and Appraisals, 1775-1865","Fogel, Robert W.; Engerman, Stanley L.","http://dx.doi.org/10.3886/ICPSR07421.v3","1865"