Faculty of Civil Engineering and Mechanics, Kunming University of Science and Technology,
650500 Kunming, China
Submission date: 2016-04-11
Final revision date: 2016-05-25
Acceptance date: 2016-06-12
Publication date: 2016-11-24
Pol. J. Environ. Stud. 2016;25(6):2609–2616