Keyword undesirable output

 
ORIGINAL RESEARCH
 

Measurements and Factors of Carbon Emission Efficiency

Lili Chen, Feng He
Pol. J. Environ. Stud. 2017;26(5):1963-1973
 
ORIGINAL RESEARCH
 

A PSBM Model for Environmental Efficiency Evaluation and Its Application

Malin Song1, Jun Peng1, Wei Liu2, Qingxian An3
Pol. J. Environ. Stud. 2014;23(3):893-900
 
eISSN:2083-5906
ISSN:1230-1485
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