Rights:
© 2011 American Physical Society (APS). This is the accepted version of the following article: Vehviläinen, T. T. & Ganchenkova, M. G. & Oikkonen, L. E. & Nieminen, Risto M. 2011. Hydrogen interaction with fullerenes: From C[sub 20] to graphene. Physical Review B. Volume 84, Issue 8. 085447/1-7. ISSN 1550-235X (electronic). DOI: 10.1103/physrevb.84.085447, which has been published in final form at http://journals.aps.org/prb/abstract/10.1103/PhysRevB.84.085447.