The contribution of boundary layer nucleation events to total particle concentration on regional and global scales,
Spracklen, D. V., K. S. Carslaw, M. Kulmala, V.-M. Kerminen, G. V. Mann, S.-L. Sihto (2006),
Atmos. Chem. Phys., 6 p. 5631–5648,
10.5194/acp-6-5631-2006.