Dundas SJ, von Haefen RH, Mansfield C. Recreation costs of endangered species protection: evidence from Cape Hatteras National Seashore. Marine Resource Economics. 2018 Jan;33(1):1-25. doi: 10.1086/694752
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.
Wagner JD, Anthony MS, Cline JM. Soy phytoestrogens: research on benefits and risks. Clin Obstet Gynecol. 2001 Dec;44(4):843-52.