"study number","owner","title","investigators","doi","time period"
"00041","ICPSR","Norwegian Ecological Data, 1868-1903","Aarebrot, Frank; Kuhnle, Stein","http://dx.doi.org/10.3886/ICPSR00041.v1","1903"
"00040","ICPSR","Norwegian Ecological Data, 1949-1961","Aarebrot, Frank; Kuhnle, Stein","http://dx.doi.org/10.3886/ICPSR00040.v1","1961"