EN中文
Eco-efficiency in the Bohai Rim area based on undesirable outputs and threshold regression model
Zenglin HAN, Ailing WU, Fei PENG, Jiaze SUN, Kang XIA
PROGRESS IN GEOGRAPHY . 2018, (2): 255 -265 .  DOI: 10.18306/dlkxjz.2018.02.008