共 47 条
[31]
Mihali C, 2013, CARPATH J EARTH ENV, V8, P143
[33]
Muntean E., 2013, ProEnvironment, V6, P469
[34]
Oprea Gabriela, 2010, American Journal of Environmental Sciences, V6, P33, DOI 10.3844/ajessp.2010.33.40