Atmospheric Chemistry and Physics, Vol 17, Pp 15181-15197 (2017) Wagner, R, Yan, C, Lehtipalo, K, Duplissy, J, Nieminen, T, Kangasluoma, J, Ahonen, L R, Dada, L, Kontkanen, J, Manninen, H E, Dias, A, Amorim, A, Bauer, P S, Bergen, A, Bernhammer, A K, Bianchi, F, Brilke, S, Buenrostro Mazon, S, Chen, X, Draper, D C, Fischer, L, Frege, C, Fuchs, C, Garmash, O, Gordon, H, Hakala, J, Heikkinen, L, Heinritzi, M, Hofbauer, V, Hoyle, C R, Kirkby, J, Kürten, A, Kvashnin, A N, Laurila, T, Lawler, M J, Mai, H, Makhmutov, V, Mauldin, R, Molteni, U, Nichman, L, Nie, W, Ojdanic, A, Onnela, A, Piel, F, Quéléver, L L J, Rissanen, M P, Sarnela, N, Schallhart, S, Sengupta, K, Simon, M, Stolzenburg, D, Stozhkov, Y, Tröstl, J, Viisanen, Y, Vogel, A L, Wagner, A C, Xiao, M, Ye, P, Baltensperger, U, Curtius, J, Donahue, N M, Flagan, R C, Gallagher, M, Hansel, A, Smith, J N, Tomé, A, Winkler, P M, Worsnop, D, Ehn, M, Sipilä, M, Kerminen, V M, Petäjä, T & Kulmala, M 2017, ' The role of ions in new particle formation in the CLOUD chamber ', Atmospheric Chemistry and Physics, vol. 17, no. 24, pp. 15181-15197 . https://doi.org/10.5194/acp-17-15181-2017 Wagner, R, Yan, C, Lehtipalo, K, Duplissy, J, Nieminen, T V M, Kangasluoma, J, Ahonen, L, Dada, L, Kontkanen, J, Manninen, H, Dias, A, Amorim, A, Bauer, P, Bergen, A, Bernhammer, A-K, Bianchi, F, Brilke, S, Buenrostro Mazon, S, Chen, X, Draper, D, Fischer, L, Frege, C, Fuchs, C, Garmash, O, Gordon, H, Hakala, J, Heikkinen, L, Heinritzi, M, Hofbauer, V, Hoyle, C, Kirkby, J, Kurten, A, Kvashin, A, Laurila, T, Lawler, M, Mai, H, Makhmutov, V, Mauldin, R, Molteni, U, Nichman, L, Nie, W, Ojdanic, A, Onnela, A, Piel, F, Quelever, L, Rissanen, M, Sarnela, N, Schallhart, S, Sengupta, K, Simon, M, Stolzenburg, D, Stozhkov, Y, Trostl, J, Viisanen, Y, Vogel, A, Wagner, A, Xiao, M, Ye, P, Baltensperger, U, Curtius, J, Donahue, N M, Flagan, R, Gallagher, M, Hansel, A, Smith, J, Tome, A, Winkler, P, Worsnop, D, Ehn, M, Sipila, M, Kerminen, V-M, Petaja, T & Kulmala, M 2017, ' The role of ions in new-particle formation in the CLOUD chamber ', Atmospheric Chemistry and Physics, vol. 17, no. 24, pp. 15181–15197 . https://doi.org/10.5194/acp-2017-536 Atmospheric Chemistry and Physics