1. Copper in peat bog formations of the Middle Urals;Al'bov;Soviet Geol.,1968
2. The role of humic acids from Tasmanian podzolic soils in mineral degradation and metal mobilization;Baker;Geochim. Cosmochim. Acta,1973
3. The copper swamp in the Aboushagan Woods, North Sackville;Beschel,1959
4. Reactions between metals and humified organic matter;Bloomfield;J. Soil Sci.,1976
5. Stability of soluble coordination compounds of copper with humic and fulvic acids;Bondarenko;Geochem. Int.,1972