Distribution of trace metals in the top layer of raised bogHödrejärv, Helvi; Ott, Roman; Saare, LeoEnvironmental contamination : 2nd International Conference [on Environmental Contamination], Amsterdam, September 19861986 / p. 175-177

Monitoring of heavy metals in the coastal areaHödrejärv, Helvi; Ott, RomanEnvironmental contamination : 3rd international conference, Venice, September 19881988 / p. 541-543