TY - JOUR A1 - Ni, H. A1 - Huang, R.-J. A1 - Cao, J. A1 - Guo, J. A1 - Deng, H. A1 - Dusek, U. T1 - Sources and formation of carbonaceous aerosols in Xi'an, China: primary emissions and secondary formation constrained by radiocarbon JO - Atmos. Chem. Phys. J1 - ACP VL - 19 IS - 24 SP - 15609 EP - 15628 Y1 - 2019/12/20 PB - Copernicus Publications SN - 1680-7324 UR - https://acp.copernicus.org/articles/19/15609/2019/ L1 - https://acp.copernicus.org/articles/19/15609/2019/acp-19-15609-2019.pdf DO - 10.5194/acp-19-15609-2019 ER -