References
- Shotyk , W. 1996 . Peat bog archives of atmospheric metal deposition: Geochemical evolution of peat profiles, natural variations in metal concentrations, and metal enrichment factors. . Environ. Rev. , 4 : 149 – 183 .
- Shotyk , W. 1997 . Atmospheric deposition and geochemical mass balance of major elements and trace elements in two oceanic blanket bogs, northern Scotland and the Shetland Islands. . Chem. Geol. , 138 : 55 – 72 .