Amelioration of Fly-Ash by Selected Nitrogen Fixing Blue Green Algae

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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