Wiedensohler, A., Ma, N., Birmili, W., Heintzenberg, J., Ditas, F., Andreae, M. O., & Panovd, A. (2019). Infrequent new particle formation over the remote boreal forest of Siberia. Atmospheric Environment, 200, 167-169. doi:10.1016/j.atmosenv.2018.12.013.