scholarly journals Areal and temporal variations in surface-water quality in the Upper Potomac River basin

1992 ◽  
Author(s):  
Giovanna Moura Calazans ◽  
Carolina Cristiane Pinto ◽  
Elizângela Pinheiro da Costa ◽  
Anna Flávia Perini ◽  
Sílvia Corrêa Oliveira

2018 ◽  
Vol 11 (2) ◽  
pp. 653-660 ◽  
Author(s):  
P. S.Bytyçi1 ◽  
H. S. Çadraku ◽  
F. N. Zhushi Etemi ◽  
M. A. Ismaili ◽  
O. B. Fetoshi ◽  
...  

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