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2
-
Aquatic humic substances : characterisation, structure, and genesis / M�aris K�lavi�n�s.
- 631.417 K637
- Kl̦avin̦š, Māris.
- [s.n.],
- c1997.
- R�iga :
-
Chemistry of surface waters in Latvia / Māris Klaviņš, Valērijs Rodinovs, Ilga Kokorīte.
- 551.48094796 K637
- Kl̦avin̦š, Māris.
- University of Latvia,
- c2002.
- Rīga :