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Fekete Endre: Study on the heavy metals having effect on the water biocenoses in the backwaters at Alpár and Lakitelek. In: Tiscia 19. pp. 3-15. (1984)
Fügedi Klára; Fekete Endre: Heavy-metal investigation into the water- and bottom-sediment samples of the river Tisza. In: Tiscia 15. pp. 9-17. (1980)
