TY - JOUR T1 - Can the establishment of National Key Ecological Functional Zones improve air quality? : An empirical study from China JO - PLoS ONE PY - 2021/02/16 AU - Li G AU - Li L AU - Li X AU - Chen Y ED - DO - DOI: 10.1371/journal.pone.0246257 PB - Public Library of Science (PLoS) VL - 16 IS - 2 Y2 - 2024/12/22 ER -