Literature

Ross, P.S. et al., 2013. Declining concentrations of persistent PCBs, PBDEs, PCDEs, and PCNs in harbor seals (Phoca vitulina) from the Salish Sea. Strait of Georgia Ecosystem Research Initiative (ERI), 115, pp.160 - 170. Available at: http://www.sciencedirect.com/science/article/pii/S0079661113000785.