Cross sections for ionization and ionic fragmentation of pyrimidine molecules by electron collisions I. Linert, M. Dampc, B. Mielewska and M. Zubek Eur. Phys. J. D, 66 1 (2012) 20 Published online: 31 January 2012 DOI: 10.1140/epjd/e2011-20648-3