Ojha, N., Naja, M., Singh, K. P., Sarangi, T., Kumar, R., Lal, S., et al. (2012). Variabilities in ozone at a semi-urban site in the Indo-Gangetic Plain region: Association with the meteorology and regional processes. Journal of Geophysical Research-Atmospheres, 117: D20301. doi:10.1029/2012JD017716.