L. Hakkari

On the effects of eutrophication on Lake Päijänne, Central Finland: With 6 figures and 7 tables in the text

J. Särkkä, P. Tuunainen, K. Granberg, 1972 .

On the fry densities of pike (Esox lucius L.) in Lake Saimaa, Finland: With 3 figures and 2 tables in the text

L. Hakkari, P. Bagge, 1985 .

Zooplankton studies in the lake Längelmävesi, south Finland

L. Hakkari, 1969 .

Interrelationships of phytoplankton and zooplankton production in some lakes of Central Finland: With 3 figures and 1 table in the text

L. Hakkari, 1978 .

Effects of paper mill effluents on the fish fauna of stony shores of Lake Päijänne

L. Hakkari, P. Bagge, 1992, Hydrobiologia.