Scientific reports, vol 8, iss 1 Scientific Reports, Vol 8, Iss 1, Pp 1-7 (2018) Scientific Reports Li, S, Park, S, Lee, J Y, Ha, K J, Park, M K, Jo, C O, Oh, H, Mühle, J, Kim, K R, Montzka, S A, O'Doherty, S, Krummel, P B, Atlas, E, Miller, B R, Moore, F, Weiss, R F & Wofsy, S C 2018, ' Chemical evidence of inter-hemispheric air mass intrusion into the Northern Hemisphere mid-latitudes ', Scientific Reports, vol. 8, 4669 . https://doi.org/10.1038/s41598-018-22266-0