Myers KH, Parsons GR, Edwards PET. Measuring the recreational use value of migratory shorebirds on the Delaware Bay. Marine Resource Economics. 2010 Apr 23;25(3):247-64.
Willett W, Greenland S, MacMahon B, Trichopoulos D, Rothman KJ, Thomas D. The discipline of epidemiology. Science. 1995 Sep 8;269(5229):1325-6. doi: 10.1126/science.7660105
Rothman KJ. Journal policies on conflict of interest. Science. 1993 Sep 24;261(5129):1661. doi: 10.1126/science.8378766