Authors: Mikko Sipilä; Torsten Berndt; Tuukka Petäjä; David Brus; Joonas Vanhanen; Frank Stratmann; Johanna Patokoski; Roy L Mauldin; Antti-Pekka Hyvärinen; Heikki Lihavainen; Markku Kulmala Journal: Science Date: 2010-03-05 Impact factor: 47.728
Authors: Oliver Welz; John D Savee; David L Osborn; Subith S Vasu; Carl J Percival; Dudley E Shallcross; Craig A Taatjes Journal: Science Date: 2012-01-13 Impact factor: 47.728
Authors: R L Mauldin; T Berndt; M Sipilä; P Paasonen; T Petäjä; S Kim; T Kurtén; F Stratmann; V-M Kerminen; M Kulmala Journal: Nature Date: 2012-08-09 Impact factor: 49.962