Physiological and biochemical studies on nitrogen fixing blue-green algae

1962 ◽  
Vol 43 (1) ◽  
pp. 67-75 ◽  
Author(s):  
Ezz Eldin M. Taha ◽  
Abd El Monem H. Elrefai
2000 ◽  
Vol 64 (2) ◽  
pp. 294-301 ◽  
Author(s):  
U. N. Rai ◽  
R. D. Tripathi ◽  
N. Singh ◽  
A. Kumar ◽  
M. B. Ali ◽  
...  

Oikos ◽  
1969 ◽  
Vol 20 (1) ◽  
pp. 175 ◽  
Author(s):  
Ulf Granhall ◽  
Elisabet Henriksson

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