BibTex format
@article{Ma:2019:10.3390/ijerph16040539,
author = {Ma, X and Xiao, Z and He, L and Shi, Z and Cao, Y and Tian, Z and Tuan, V and Liu, J},
doi = {10.3390/ijerph16040539},
journal = {INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH},
title = {Chemical Composition and Source Apportionment of PM<sub>2.5</sub> in Urban Areas of Xiangtan, Central South China},
url = {http://dx.doi.org/10.3390/ijerph16040539},
volume = {16},
year = {2019}
}